diff --git a/CMakeLists.txt b/CMakeLists.txt
index f785b5d0c..28a9b115c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -137,6 +137,8 @@ option(ENABLE_SSE42 "Enable SSE4.2 optimizations on x86_64" ON)
 
 option(ENABLE_DEVELOPER_OPTIONS "Enable functionality targeted at emulator developers" OFF)
 
+option(ENABLE_BUILTIN_KEYBLOB "Enable the inclusion of the default crypto keys blob" ON)
+
 # Compile options
 CMAKE_DEPENDENT_OPTION(COMPILE_WITH_DWARF "Add DWARF debugging information" ${IS_DEBUG_BUILD} "MINGW" OFF)
 option(ENABLE_LTO "Enable link time optimization" ${DEFAULT_ENABLE_LTO})
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f0da8bbe3..15799c0c4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -183,6 +183,9 @@ endif()
 if(ENABLE_DEVELOPER_OPTIONS)
     add_compile_definitions(ENABLE_DEVELOPER_OPTIONS)
 endif()
+if(ENABLE_BUILTIN_KEYBLOB)
+    add_compile_definitions(ENABLE_BUILTIN_KEYBLOB)
+endif()
 
 add_subdirectory(common)
 add_subdirectory(core)
diff --git a/src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt b/src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt
index f8cb55874..018fea670 100644
--- a/src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt
+++ b/src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt
@@ -258,6 +258,9 @@ object NativeLibrary {
 
     external fun nativeFileExists(path: String): Boolean
 
+    external fun deleteOpenGLShaderCache(titleId: Long)
+    external fun deleteVulkanShaderCache(titleId: Long)
+
     private var coreErrorAlertResult = false
     private val coreErrorAlertLock = Object()
 
diff --git a/src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.kt b/src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.kt
index 5f5215876..ba3156754 100644
--- a/src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.kt
+++ b/src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.kt
@@ -8,6 +8,7 @@ import android.Manifest.permission
 import android.annotation.SuppressLint
 import android.content.Intent
 import android.content.SharedPreferences
+import android.content.pm.ActivityInfo
 import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Bundle
@@ -80,7 +81,9 @@ class EmulationActivity : AppCompatActivity() {
             return navHostFragment.getChildFragmentManager().fragments.last() as EmulationFragment
         }
 
+    private var isRotationBlocked: Boolean = true
     private var isEmulationRunning: Boolean = false
+    private var isEmulationReady: Boolean = false
 
     override fun onCreate(savedInstanceState: Bundle?) {
         requestWindowFeature(Window.FEATURE_NO_TITLE)
@@ -89,12 +92,20 @@ class EmulationActivity : AppCompatActivity() {
 
         ThemeUtil.setTheme(this)
         settingsViewModel.settings.loadSettings()
+
+        screenAdjustmentUtil = ScreenAdjustmentUtil(this, windowManager, settingsViewModel.settings)
+
+        // Block orientation until emulation is ready to prevent unneccesary
+        // surface recreation until the renderer is ready.
+        isRotationBlocked = true
+        requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LOCKED
+
         super.onCreate(savedInstanceState)
+
         secondaryDisplay = SecondaryDisplay(this)
         secondaryDisplay.updateDisplay()
 
         binding = ActivityEmulationBinding.inflate(layoutInflater)
-        screenAdjustmentUtil = ScreenAdjustmentUtil(this, windowManager, settingsViewModel.settings)
         hotkeyUtility = HotkeyUtility(screenAdjustmentUtil, this)
         setContentView(binding.root)
 
@@ -119,8 +130,6 @@ class EmulationActivity : AppCompatActivity() {
         isEmulationRunning = true
         instance = this
 
-        applyOrientationSettings() // Check for orientation settings at startup
-
         val game = try {
             intent.extras?.let { extras ->
                 BundleCompat.getParcelable(extras, "game", Game::class.java)
@@ -140,9 +149,18 @@ class EmulationActivity : AppCompatActivity() {
     // rotations. Here we set full screen immersive repeatedly in onResume and in
     // onWindowFocusChanged to prevent the unwanted status bar state.
     override fun onResume() {
-        super.onResume()
         enableFullscreenImmersive()
-        applyOrientationSettings() // Check for orientation settings changes on runtime
+        if (isEmulationReady) {
+            // If emulation is ready then unblock rotation
+            isRotationBlocked = false
+            applyOrientationSettings()
+            emulationViewModel.setEmulationStarted(true)
+        } else {
+            if (!isRotationBlocked) {
+                applyOrientationSettings()
+            }
+        }
+        super.onResume()
     }
 
     override fun onStop() {
@@ -151,8 +169,8 @@ class EmulationActivity : AppCompatActivity() {
     }
 
     override fun onWindowFocusChanged(hasFocus: Boolean) {
-        super.onWindowFocusChanged(hasFocus)
         enableFullscreenImmersive()
+        super.onWindowFocusChanged(hasFocus)
     }
 
     public override fun onRestart() {
@@ -164,11 +182,15 @@ class EmulationActivity : AppCompatActivity() {
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)
         outState.putBoolean("isEmulationRunning", isEmulationRunning)
+        outState.putBoolean("isEmulationReady", isEmulationReady)
+        outState.putBoolean("isRotationBlocked", isRotationBlocked)
     }
 
     override fun onRestoreInstanceState(savedInstanceState: Bundle) {
         super.onRestoreInstanceState(savedInstanceState)
         isEmulationRunning = savedInstanceState.getBoolean("isEmulationRunning", false)
+        isEmulationReady = savedInstanceState.getBoolean("isEmulationReady", false)
+        isRotationBlocked = savedInstanceState.getBoolean("isRotationBlocked", isRotationBlocked)
     }
 
     override fun onDestroy() {
@@ -222,6 +244,11 @@ class EmulationActivity : AppCompatActivity() {
 
     fun onEmulationStarted() {
         emulationViewModel.setEmulationStarted(true)
+        isEmulationReady = true
+        if (isRotationBlocked) {
+            isRotationBlocked = false
+            applyOrientationSettings()
+        }
         Toast.makeText(
             applicationContext,
             getString(R.string.emulation_menu_help),
diff --git a/src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt b/src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt
index d43ea5a60..392f68661 100644
--- a/src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt
+++ b/src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt
@@ -36,6 +36,7 @@ import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
 import android.widget.PopupMenu
+import androidx.lifecycle.lifecycleScope
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.bottomsheet.BottomSheetDialog
 import com.google.android.material.button.MaterialButton
@@ -514,6 +515,63 @@ class GameAdapter(
             showUninstallContextMenu(it, game, bottomSheetDialog)
         }
 
+        bottomSheetView.findViewById<MaterialButton>(R.id.delete_cache).setOnClickListener {
+            val options = arrayOf(context.getString(R.string.vulkan), context.getString(R.string.opengles))
+            var selectedIndex = -1
+            val dialog = MaterialAlertDialogBuilder(context)
+                .setTitle(R.string.delete_cache_select_backend)
+                .setSingleChoiceItems(options, -1) { dialog, which ->
+                    selectedIndex = which
+                }
+                .setPositiveButton(android.R.string.ok) {_, _ ->
+                    val progToast = Toast.makeText(
+                        CitraApplication.appContext,
+                        R.string.deleting_shader_cache,
+                        Toast.LENGTH_LONG
+                    )
+                    progToast.show()
+
+                    activity.lifecycleScope.launch(Dispatchers.IO) {
+
+                        when (selectedIndex) {
+                            0 -> {
+                                NativeLibrary.deleteVulkanShaderCache(game.titleId)
+                            }
+                            1 -> {
+                                NativeLibrary.deleteOpenGLShaderCache(game.titleId)
+                            }
+                        }
+
+                        activity.runOnUiThread {
+                            progToast.cancel()
+                            Toast.makeText(
+                                CitraApplication.appContext,
+                                R.string.shader_cache_deleted,
+                                Toast.LENGTH_SHORT
+                            ).show()
+                        }
+                    }
+                }
+                .setNegativeButton(android.R.string.cancel) { dialog, _ ->
+                    dialog.dismiss()
+                }
+                .create()
+
+            dialog.setOnShowListener {
+                val positiveButton = dialog.getButton(android.app.AlertDialog.BUTTON_POSITIVE)
+
+                positiveButton.isEnabled = false
+
+                val listView = dialog.listView
+                listView.setOnItemClickListener { _, _, position, _ ->
+                    selectedIndex = position
+                    positiveButton.isEnabled = true
+                }
+            }
+
+            dialog.show()
+        }
+
         val bottomSheetBehavior = bottomSheetDialog.getBehavior()
         bottomSheetBehavior.skipCollapsed = true
         bottomSheetBehavior.state = BottomSheetBehavior.STATE_EXPANDED
diff --git a/src/android/app/src/main/jni/native.cpp b/src/android/app/src/main/jni/native.cpp
index f4a30610c..42ac888d2 100644
--- a/src/android/app/src/main/jni/native.cpp
+++ b/src/android/app/src/main/jni/native.cpp
@@ -1130,4 +1130,44 @@ jboolean Java_org_citra_citra_1emu_NativeLibrary_nativeFileExists(JNIEnv* env, j
     return FileUtil::Exists(path);
 }
 
-} // extern "C"
+void Java_org_citra_citra_1emu_NativeLibrary_deleteOpenGLShaderCache(JNIEnv* env, jobject obj,
+                                                                     jlong title_id) {
+    for (const std::string_view cache_type : {"separable", "conventional"}) {
+        const std::string path =
+            fmt::format("{}opengl/precompiled/{}/{:016X}.bin",
+                        FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir), cache_type, title_id);
+        LOG_INFO(Frontend, "Deleting shader file: {}", path);
+        FileUtil::Delete(path);
+    }
+    const std::string path =
+        fmt::format("{}opengl/transferable/{:016X}.bin",
+                    FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir), title_id);
+    LOG_INFO(Frontend, "Deleting shader file: {}", path);
+    FileUtil::Delete(path);
+}
+
+void Java_org_citra_citra_1emu_NativeLibrary_deleteVulkanShaderCache(JNIEnv* env, jobject obj,
+                                                                     jlong title_id) {
+    for (const std::string_view cache_type : {"vs", "fs", "gs", "pl"}) {
+        const std::string path =
+            fmt::format("{}vulkan/transferable/{:016X}_{}.vkch",
+                        FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir), title_id, cache_type);
+        LOG_INFO(Frontend, "Deleting shader file: {}", path);
+        FileUtil::Delete(path);
+    }
+
+    FileUtil::ForeachDirectoryEntry(
+        nullptr,
+        fmt::format("{}vulkan/pipeline", FileUtil::GetUserPath(FileUtil::UserPath::ShaderDir)),
+        [title_id]([[maybe_unused]] u64* num_entries_out, const std::string& directory,
+                   const std::string& virtual_name) {
+            if (virtual_name.starts_with(fmt::format("{:016X}", title_id))) {
+                std::string path = directory + DIR_SEP + virtual_name;
+                LOG_INFO(Frontend, "Deleting shader file: {}", path);
+                FileUtil::Delete(path);
+            }
+            return true;
+        });
+}
+
+} // extern "C"
\ No newline at end of file
diff --git a/src/android/app/src/main/res/layout/dialog_about_game.xml b/src/android/app/src/main/res/layout/dialog_about_game.xml
index cb7eea8de..6bcc2a08e 100644
--- a/src/android/app/src/main/res/layout/dialog_about_game.xml
+++ b/src/android/app/src/main/res/layout/dialog_about_game.xml
@@ -161,7 +161,7 @@
         </LinearLayout>
 
         <LinearLayout
-            android:id="@+id/game_button_tray"
+            android:id="@+id/horizontal_layout_2"
             style="@style/ThemeOverlay.Material3.Button.IconButton.Filled.Tonal"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ -199,19 +199,24 @@
         </LinearLayout>
 
         <LinearLayout
-            android:id="@+id/compress_tray"
+            android:id="@+id/horizontal_layout_3"
             style="@style/ThemeOverlay.Material3.Button.IconButton.Filled.Tonal"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginTop="16dp"
             android:gravity="start|center"
             android:orientation="horizontal"
-            app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintHorizontal_bias="0.0"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/game_button_tray">
+            app:layout_constraintTop_toBottomOf="@+id/horizontal_layout_2">
 
+            <com.google.android.material.button.MaterialButton
+                android:id="@+id/delete_cache"
+                style="@style/Widget.Material3.Button.TonalButton.Icon"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:contentDescription="@string/delete_shader_cache"
+                android:text="@string/delete_shader_cache" />
         </LinearLayout>
 
     </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index 750677fd5..08e927081 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -586,6 +586,10 @@
     <!-- Disk Shader Cache -->
     <string name="preparing_shaders">Preparing Shaders</string>
     <string name="building_shaders">Building %s</string>
+    <string name="delete_shader_cache">Delete Shader Cache</string>
+    <string name="delete_cache_select_backend">Select which graphics API to delete the shader cache</string>
+    <string name="deleting_shader_cache">Deleting shader cache for title, please wait…</string>
+    <string name="shader_cache_deleted">Shader cache deleted</string>
 
     <!-- About Game Dialog -->
     <string name="play">Play</string>
diff --git a/src/citra_libretro/citra_libretro.cpp b/src/citra_libretro/citra_libretro.cpp
index 9263fc46b..c93931196 100644
--- a/src/citra_libretro/citra_libretro.cpp
+++ b/src/citra_libretro/citra_libretro.cpp
@@ -105,31 +105,6 @@ unsigned retro_api_version() {
     return RETRO_API_VERSION;
 }
 
-void LibRetro::OnConfigureEnvironment() {
-
-#ifdef HAVE_LIBRETRO_VFS
-    struct retro_vfs_interface_info vfs_iface_info{1, nullptr};
-    LibRetro::SetVFSCallback(&vfs_iface_info);
-#endif
-
-    LibRetro::RegisterCoreOptions();
-
-    static const struct retro_controller_description controllers[] = {
-        {"Nintendo 3DS", RETRO_DEVICE_JOYPAD},
-    };
-
-    static const struct retro_controller_info ports[] = {
-        {controllers, 1},
-        {nullptr, 0},
-    };
-
-    LibRetro::SetControllerInfo(ports);
-}
-
-uintptr_t LibRetro::GetFramebuffer() {
-    return emu_instance->hw_render.get_current_framebuffer();
-}
-
 /**
  * Updates Citra's settings with Libretro's.
  */
@@ -598,6 +573,7 @@ bool retro_load_game(const struct retro_game_info* info) {
             LibRetro::DisplayMessage("Failed to set HW renderer");
             return false;
         }
+        LibRetro::SetFramebufferCallback(emu_instance->hw_render.get_current_framebuffer);
 #endif
         break;
     case Settings::GraphicsAPI::Vulkan:
diff --git a/src/citra_libretro/environment.cpp b/src/citra_libretro/environment.cpp
index c3deddacc..03bf51053 100644
--- a/src/citra_libretro/environment.cpp
+++ b/src/citra_libretro/environment.cpp
@@ -8,6 +8,7 @@
 #include "audio_core/libretro_sink.h"
 #include "common/scm_rev.h"
 #include "core/3ds.h"
+#include "core_settings.h"
 #include "emu_window/libretro_window.h"
 #include "environment.h"
 
@@ -26,6 +27,7 @@ static retro_audio_sample_batch_t audio_batch_cb;
 static retro_environment_t environ_cb;
 static retro_input_poll_t input_poll_cb;
 static retro_input_state_t input_state_cb;
+static retro_hw_get_current_framebuffer_t framebuffer_cb;
 
 } // namespace
 
@@ -232,6 +234,34 @@ bool CanUseJIT() {
 }
 #endif
 
+void OnConfigureEnvironment() {
+#ifdef HAVE_LIBRETRO_VFS
+    struct retro_vfs_interface_info vfs_iface_info{1, nullptr};
+    SetVFSCallback(&vfs_iface_info);
+#endif
+
+    RegisterCoreOptions();
+
+    static const struct retro_controller_description controllers[] = {
+        {"Nintendo 3DS", RETRO_DEVICE_JOYPAD},
+    };
+
+    static const struct retro_controller_info ports[] = {
+        {controllers, 1},
+        {nullptr, 0},
+    };
+
+    SetControllerInfo(ports);
+}
+
+void SetFramebufferCallback(retro_hw_get_current_framebuffer_t cb) {
+    framebuffer_cb = cb;
+}
+
+uintptr_t GetFramebuffer() {
+    return framebuffer_cb ? framebuffer_cb() : 0;
+}
+
 }; // namespace LibRetro
 
 void retro_get_system_info(struct retro_system_info* info) {
diff --git a/src/citra_libretro/environment.h b/src/citra_libretro/environment.h
index 2b84d8b85..18f2b04bd 100644
--- a/src/citra_libretro/environment.h
+++ b/src/citra_libretro/environment.h
@@ -109,6 +109,9 @@ bool HasUpdatedConfig();
 /// Returns the current framebuffer.
 uintptr_t GetFramebuffer();
 
+/// Sets the callback used by GetFramebuffer().
+void SetFramebufferCallback(retro_hw_get_current_framebuffer_t cb);
+
 /// Tells the frontend that we are done.
 bool Shutdown();
 
diff --git a/src/citra_qt/CMakeLists.txt b/src/citra_qt/CMakeLists.txt
index 20971828a..8be0aff56 100644
--- a/src/citra_qt/CMakeLists.txt
+++ b/src/citra_qt/CMakeLists.txt
@@ -174,6 +174,8 @@ add_library(citra_qt STATIC EXCLUDE_FROM_ALL
     multiplayer/state.cpp
     multiplayer/state.h
     multiplayer/validation.h
+    notification_led.cpp
+    notification_led.h
     precompiled_headers.h
     qt_image_interface.cpp
     qt_image_interface.h
diff --git a/src/citra_qt/citra_qt.cpp b/src/citra_qt/citra_qt.cpp
index 9bb0b2e34..8c2d373c7 100644
--- a/src/citra_qt/citra_qt.cpp
+++ b/src/citra_qt/citra_qt.cpp
@@ -352,6 +352,8 @@ GMainWindow::GMainWindow(Core::System& system_)
     Camera::RegisterFactory("image", std::make_unique<Camera::StillImageCameraFactory>());
     Camera::RegisterFactory("qt", std::make_unique<Camera::QtMultimediaCameraFactory>(qt_cameras));
 
+    system.RegisterInfoLEDColorChanged([this]() { emit InfoLEDColorChanged(); });
+
     LoadTranslation();
 
     Pica::g_debug_context = Pica::DebugContext::Construct();
@@ -606,6 +608,20 @@ void GMainWindow::InitializeWidgets() {
     statusBar()->addPermanentWidget(multiplayer_state->GetStatusText());
     statusBar()->addPermanentWidget(multiplayer_state->GetStatusIcon());
 
+    QFrame* sep = new QFrame(this);
+    sep->setFrameShape(QFrame::VLine);
+    sep->setFrameShadow(QFrame::Sunken);
+    sep->setFixedHeight(16);
+    statusBar()->addPermanentWidget(sep);
+
+    notification_led = new LedWidget();
+    notification_led->setToolTip(tr("Emulated notification LED"));
+    statusBar()->addPermanentWidget(notification_led);
+    connect(this, &GMainWindow::InfoLEDColorChanged, this, [this] {
+        auto led_color = system.GetInfoLEDColor();
+        notification_led->setColor(QColor(led_color.r(), led_color.g(), led_color.b()));
+    });
+
     statusBar()->setVisible(true);
 
     // Removes an ugly inner border from the status bar widgets under Linux
@@ -1600,6 +1616,7 @@ void GMainWindow::ShutdownGame() {
     emu_speed_label->setVisible(false);
     game_fps_label->setVisible(false);
     emu_frametime_label->setVisible(false);
+    notification_led->setColor(QColor(0, 0, 0));
 
     UpdateSaveStates();
 
diff --git a/src/citra_qt/citra_qt.h b/src/citra_qt/citra_qt.h
index cdf9eaff6..f0092cc19 100644
--- a/src/citra_qt/citra_qt.h
+++ b/src/citra_qt/citra_qt.h
@@ -21,6 +21,7 @@
 #include <QTranslator>
 #include "citra_qt/compatibility_list.h"
 #include "citra_qt/hotkeys.h"
+#include "citra_qt/notification_led.h"
 #include "citra_qt/user_data_migration.h"
 #include "core/core.h"
 #include "core/savestate.h"
@@ -147,6 +148,7 @@ signals:
     void CIAInstallReport(Service::AM::InstallStatus status, QString filepath);
     void CompressFinished(bool is_compress, bool success);
     void CIAInstallFinished();
+    void InfoLEDColorChanged();
     // Signal that tells widgets to update icons to use the current theme
     void UpdateThemedIcons();
 
@@ -364,6 +366,8 @@ private:
 
     MultiplayerState* multiplayer_state = nullptr;
 
+    LedWidget* notification_led = nullptr;
+
     // Created before `config` to ensure that emu data directory
     // isn't created before the check is performed
     UserDataMigrator user_data_migrator;
diff --git a/src/citra_qt/configuration/configure_system.cpp b/src/citra_qt/configuration/configure_system.cpp
index 9ed8bebfa..6b47a28d1 100644
--- a/src/citra_qt/configuration/configure_system.cpp
+++ b/src/citra_qt/configuration/configure_system.cpp
@@ -670,12 +670,16 @@ void ConfigureSystem::RefreshSecureDataStatus() {
             return tr("Status: Loaded (Invalid Signature)");
         case HW::UniqueData::SecureDataLoadStatus::RegionChanged:
             return tr("Status: Loaded (Region Changed)");
+        case HW::UniqueData::SecureDataLoadStatus::CannotValidateSignature:
+            return tr("Status: Loaded (Cannot Validate Signature)");
         case HW::UniqueData::SecureDataLoadStatus::NotFound:
             return tr("Status: Not Found");
         case HW::UniqueData::SecureDataLoadStatus::Invalid:
             return tr("Status: Invalid");
         case HW::UniqueData::SecureDataLoadStatus::IOError:
             return tr("Status: IO Error");
+        case HW::UniqueData::SecureDataLoadStatus::NoCryptoKeys:
+            return tr("Status: Missing Crypto Keys");
         default:
             return QString();
         }
diff --git a/src/citra_qt/notification_led.cpp b/src/citra_qt/notification_led.cpp
new file mode 100644
index 000000000..e7d9e0d33
--- /dev/null
+++ b/src/citra_qt/notification_led.cpp
@@ -0,0 +1,87 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <cmath>
+#include <QPainter>
+#include <QRadialGradient>
+#include "citra_qt/notification_led.h"
+
+LedWidget::LedWidget(QWidget* parent) : QWidget(parent), color(0, 0, 0) {
+    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+}
+
+QSize LedWidget::sizeHint() const {
+    return QSize(16, 16);
+}
+
+QSize LedWidget::minimumSizeHint() const {
+    return QSize(16, 16);
+}
+
+void LedWidget::setColor(const QColor& _color) {
+    if (color == _color)
+        return;
+
+    color = _color;
+    update();
+}
+
+QColor LedWidget::lerpColor(const QColor& a, const QColor& b, float t) {
+    t = std::clamp(t, 0.0f, 1.0f);
+
+    return QColor(int(a.red() + (b.red() - a.red()) * t),
+                  int(a.green() + (b.green() - a.green()) * t),
+                  int(a.blue() + (b.blue() - a.blue()) * t));
+}
+
+QColor LedWidget::blendLedColor(int r, int g, int b) const {
+    // Default "off" color
+    const QColor off_color(64, 64, 64);
+
+    // If completely off, just show gray and skip further calculations
+    if (r == 0 && g == 0 && b == 0)
+        return off_color;
+
+    // Normalize lit color so hue stays pure
+    int max_c = std::max({r, g, b});
+    QColor lit_color((r * 255) / max_c, (g * 255) / max_c, (b * 255) / max_c);
+
+    // Convert PWM duty to perceived brightness.
+    // This gives better results as LED RGB values
+    // are not linear.
+    constexpr float gamma = 2.4f;
+    float pwm = max_c / 255.0;
+    float t = std::powf(pwm, 1.f / gamma);
+
+    return lerpColor(off_color, lit_color, t * 0.8f);
+}
+
+void LedWidget::paintEvent(QPaintEvent*) {
+    QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
+
+    QRectF rect = this->rect().adjusted(0, 2, 0, -2);
+
+    qreal size = std::min(rect.width(), rect.height());
+    QRectF circle((rect.center().x() - size / 2.f) - 2, rect.center().y() - size / 2.f, size, size);
+
+    QPointF center = circle.center();
+    qreal radius = circle.width() / 2.f;
+
+    QColor base = blendLedColor(color.red(), color.green(), color.blue());
+
+    QRadialGradient g(center, radius);
+
+    QColor inner = base.lighter(135);
+    QColor outer = base.darker(125);
+
+    g.setColorAt(0.f, inner);
+    g.setColorAt(0.7f, base);
+    g.setColorAt(1.f, outer);
+
+    p.setPen(Qt::NoPen);
+    p.setBrush(g);
+    p.drawEllipse(circle);
+}
diff --git a/src/citra_qt/notification_led.h b/src/citra_qt/notification_led.h
new file mode 100644
index 000000000..3a139a202
--- /dev/null
+++ b/src/citra_qt/notification_led.h
@@ -0,0 +1,30 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QColor>
+#include <QWidget>
+
+class LedWidget : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit LedWidget(QWidget* parent = nullptr);
+
+    QSize sizeHint() const override;
+    QSize minimumSizeHint() const override;
+
+    void setColor(const QColor& color);
+
+protected:
+    void paintEvent(QPaintEvent* event) override;
+
+private:
+    QColor blendLedColor(int r, int g, int b) const;
+    static QColor lerpColor(const QColor& a, const QColor& b, float t);
+
+private:
+    QColor color;
+};
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index fd8212dcf..ec7a45bfe 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -350,6 +350,8 @@ add_library(citra_core STATIC
     hle/service/ldr_ro/ldr_ro.h
     hle/service/mcu/mcu_hwc.cpp
     hle/service/mcu/mcu_hwc.h
+    hle/service/mcu/mcu_rtc.cpp
+    hle/service/mcu/mcu_rtc.h
     hle/service/mcu/mcu.cpp
     hle/service/mcu/mcu.h
     hle/service/mic/mic_u.cpp
@@ -462,7 +464,6 @@ add_library(citra_core STATIC
     hw/aes/key.h
     hw/ecc.cpp
     hw/ecc.h
-    hw/default_keys.h
     hw/rsa/rsa.cpp
     hw/rsa/rsa.h
     hw/unique_data.cpp
@@ -500,6 +501,10 @@ add_library(citra_core STATIC
     tracer/recorder.h
 )
 
+if (ENABLE_BUILTIN_KEYBLOB)
+    target_sources(citra_core PRIVATE hw/default_keys.h)
+endif()
+
 create_target_directory_groups(citra_core)
 
 target_link_libraries(citra_core PUBLIC citra_common PRIVATE audio_core network video_core)
diff --git a/src/core/core.cpp b/src/core/core.cpp
index 42cba3160..6d7f7d009 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -511,6 +511,8 @@ System::ResultStatus System::Init(Frontend::EmuWindow& emu_window,
                                   Kernel::MemoryMode memory_mode, u32 num_cores) {
     LOG_DEBUG(HW_Memory, "initialized OK");
 
+    is_powered_on = true;
+
     memory = std::make_unique<Memory::MemorySystem>(*this);
 
     timing = std::make_unique<Timing>(num_cores, Settings::values.cpu_clock_percentage.GetValue(),
@@ -590,9 +592,9 @@ System::ResultStatus System::Init(Frontend::EmuWindow& emu_window,
         plg_ldr->SetAllowGameChangeState(Settings::values.allow_plugin_loader.GetValue());
     }
 
-    LOG_DEBUG(Core, "Initialized OK");
+    SetInfoLEDColor({});
 
-    is_powered_on = true;
+    LOG_DEBUG(Core, "Initialized OK");
 
     return ResultStatus::Success;
 }
@@ -687,9 +689,6 @@ void System::RegisterImageInterface(std::shared_ptr<Frontend::ImageInterface> im
 
 void System::Shutdown(bool is_deserializing) {
 
-    // Shutdown emulation session
-    is_powered_on = false;
-
     gpu.reset();
     if (!is_deserializing) {
         lle_modules.clear();
@@ -720,7 +719,12 @@ void System::Shutdown(bool is_deserializing) {
 
     memory.reset();
 
+    SetInfoLEDColor({});
+
     LOG_DEBUG(Core, "Shutdown OK");
+
+    // Shutdown emulation session
+    is_powered_on = false;
 }
 
 void System::Reset() {
diff --git a/src/core/core.h b/src/core/core.h
index ca61e8262..05620da32 100644
--- a/src/core/core.h
+++ b/src/core/core.h
@@ -12,6 +12,7 @@
 #include <boost/optional.hpp>
 #include <boost/serialization/version.hpp>
 #include "common/common_types.h"
+#include "common/vector_math.h"
 #include "core/arm/arm_interface.h"
 #include "core/cheats/cheats.h"
 #include "core/hle/service/apt/applet_manager.h"
@@ -381,6 +382,27 @@ public:
 
     bool IsInitialSetup();
 
+    // This returns the 3DS notification LED RGB value.
+    // Keep in mind this is used as a PWM duty cycle on real HW,
+    // so the percieved LED brightness is not linear.
+    const Common::Vec3<u8>& GetInfoLEDColor() const {
+        return info_led_color;
+    }
+
+    void SetInfoLEDColor(const Common::Vec3<u8>& color) {
+        if (color == info_led_color)
+            return;
+
+        info_led_color = color;
+        if (info_led_color_changed) {
+            info_led_color_changed();
+        }
+    }
+
+    void RegisterInfoLEDColorChanged(const std::function<void()>& func) {
+        info_led_color_changed = func;
+    }
+
 private:
     /**
      * Initialize the emulated system.
@@ -487,6 +509,9 @@ private:
 
     std::vector<u64> lle_modules;
 
+    Common::Vec3<u8> info_led_color;
+    std::function<void()> info_led_color_changed;
+
     friend class boost::serialization::access;
     template <typename Archive>
     void serialize(Archive& ar, const unsigned int file_version);
diff --git a/src/core/hle/service/mcu/mcu.cpp b/src/core/hle/service/mcu/mcu.cpp
index dff4ee3e9..83b0742b6 100644
--- a/src/core/hle/service/mcu/mcu.cpp
+++ b/src/core/hle/service/mcu/mcu.cpp
@@ -1,16 +1,18 @@
-// Copyright 2024 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "core/core.h"
 #include "core/hle/service/mcu/mcu.h"
 #include "core/hle/service/mcu/mcu_hwc.h"
+#include "core/hle/service/mcu/mcu_rtc.h"
 
 namespace Service::MCU {
 
 void InstallInterfaces(Core::System& system) {
     auto& service_manager = system.ServiceManager();
-    std::make_shared<HWC>()->InstallAsService(service_manager);
+    std::make_shared<HWC>(system)->InstallAsService(service_manager);
+    std::make_shared<RTC>(system)->InstallAsService(service_manager);
 }
 
 } // namespace Service::MCU
diff --git a/src/core/hle/service/mcu/mcu_hwc.cpp b/src/core/hle/service/mcu/mcu_hwc.cpp
index c2a5d7514..dbdf6b2af 100644
--- a/src/core/hle/service/mcu/mcu_hwc.cpp
+++ b/src/core/hle/service/mcu/mcu_hwc.cpp
@@ -1,15 +1,18 @@
-// Copyright 2024 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "common/archives.h"
+#include "core/hle/ipc_helpers.h"
 #include "core/hle/service/mcu/mcu_hwc.h"
+#include "core/hle/service/mcu/mcu_rtc.h"
 
+SERVICE_CONSTRUCT_IMPL(Service::MCU::HWC)
 SERIALIZE_EXPORT_IMPL(Service::MCU::HWC)
 
 namespace Service::MCU {
 
-HWC::HWC() : ServiceFramework("mcu::HWC", 1) {
+HWC::HWC(Core::System& _system) : ServiceFramework("mcu::HWC", 1), system(_system) {
     static const FunctionInfo functions[] = {
         // clang-format off
         {0x0001, nullptr, "ReadRegister"},
@@ -21,7 +24,7 @@ HWC::HWC() : ServiceFramework("mcu::HWC", 1) {
         {0x0007, nullptr, "SetWifiLEDState"},
         {0x0008, nullptr, "SetCameraLEDPattern"},
         {0x0009, nullptr, "Set3DLEDState"},
-        {0x000A, nullptr, "SetInfoLEDPattern"},
+        {0x000A, &HWC::SetInfoLEDPattern, "SetInfoLEDPattern"},
         {0x000B, nullptr, "GetSoundVolume"},
         {0x000C, nullptr, "SetTopScreenFlicker"},
         {0x000D, nullptr, "SetBottomScreenFlicker"},
@@ -33,4 +36,19 @@ HWC::HWC() : ServiceFramework("mcu::HWC", 1) {
     RegisterHandlers(functions);
 }
 
+void HWC::SetInfoLEDPattern(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    auto pat = rp.PopRaw<MCU::InfoLedPattern>();
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+
+    auto mcu_rtc = MCU::RTC::GetService(system);
+    if (mcu_rtc) {
+        mcu_rtc->UpdateInfoLEDPattern(pat);
+        rb.Push(ResultSuccess);
+    } else {
+        rb.Push(ResultUnknown);
+    }
+}
+
 } // namespace Service::MCU
diff --git a/src/core/hle/service/mcu/mcu_hwc.h b/src/core/hle/service/mcu/mcu_hwc.h
index fdcd7bf2f..8e117e9f9 100644
--- a/src/core/hle/service/mcu/mcu_hwc.h
+++ b/src/core/hle/service/mcu/mcu_hwc.h
@@ -1,4 +1,4 @@
-// Copyright 2024 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -10,12 +10,17 @@ namespace Service::MCU {
 
 class HWC final : public ServiceFramework<HWC> {
 public:
-    explicit HWC();
+    explicit HWC(Core::System& _system);
 
 private:
+    Core::System& system;
+
+    void SetInfoLEDPattern(Kernel::HLERequestContext& ctx);
+
     SERVICE_SERIALIZATION_SIMPLE
 };
 
 } // namespace Service::MCU
 
+SERVICE_CONSTRUCT(Service::MCU::HWC)
 BOOST_CLASS_EXPORT_KEY(Service::MCU::HWC)
diff --git a/src/core/hle/service/mcu/mcu_rtc.cpp b/src/core/hle/service/mcu/mcu_rtc.cpp
new file mode 100644
index 000000000..294f4c41f
--- /dev/null
+++ b/src/core/hle/service/mcu/mcu_rtc.cpp
@@ -0,0 +1,293 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include "common/archives.h"
+#include "common/vector_math.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/service/mcu/mcu.h"
+#include "core/hle/service/mcu/mcu_rtc.h"
+
+SERVICE_CONSTRUCT_IMPL(Service::MCU::RTC)
+SERIALIZE_EXPORT_IMPL(Service::MCU::RTC)
+
+namespace Service::MCU {
+
+class InfoLedHandler {
+public:
+    InfoLedHandler() = default;
+    ~InfoLedHandler() = default;
+
+    static constexpr s64 CALLBACK_PERIOD_NS = 1'000'000'000ll / 60;  // 60Hz (~16ms)
+    static constexpr s64 MCU_TICK_PERIOD_NS = 1'000'000'000ll / 512; // 512Hz (~2ms)
+
+    void SetPattern(const InfoLedPattern& p) {
+        current_pattern = p;
+        pattern_changed = true;
+    }
+
+    void SetHeader(const InfoLedPattern::Header& header) {
+        current_pattern.header = header;
+        pattern_changed = true;
+    }
+
+    // The MCU led code is updated with a frequency of 512Hz on real hardware. However
+    // it is not a very relevant feature for emulation, so to prevent slicing the core
+    // timing too much let's update it every frame instead (60Hz) and adjust for it.
+    void Tick(s64 cycles_late) {
+
+        const s64 late_ns = cyclesToNs(cycles_late);
+
+        // Accumulate elapsed time.
+        arm_time_ns += CALLBACK_PERIOD_NS + late_ns;
+        if (arm_time_ns < 0)
+            arm_time_ns = 0;
+
+        // Sync the MCU state up to the current ARM time
+        while (arm_time_ns >= MCU_TICK_PERIOD_NS) {
+            arm_time_ns -= MCU_TICK_PERIOD_NS;
+            TickMCULed();
+        }
+    }
+
+    Common::Vec3<u8> Color() const {
+        return result_color;
+    }
+
+    // To save CPU time, do not tick if all smooth state has finished
+    // and the pattern is all zero.
+    bool NeedsTicking() {
+        auto patAllZero = [this]() -> bool {
+            u32* data = reinterpret_cast<u32*>(&current_pattern);
+            for (size_t i = 0; i < sizeof(InfoLedPattern) / sizeof(u32); i++) {
+                if (data[i])
+                    return false;
+            }
+            return true;
+        };
+
+        return !patAllZero() || !state_r.Finished() || !state_g.Finished() || !state_b.Finished();
+    }
+
+    bool Status() const {
+        return status_finished;
+    }
+
+private:
+    struct LedSmoothState {
+        s16 target = 0;
+        s16 increment = 0;
+        s16 current = 0;
+
+        bool Finished() {
+            return current == target;
+        }
+
+        friend class boost::serialization::access;
+        template <class Archive>
+        void serialize(Archive& ar, const unsigned int) {
+            ar & target;
+            ar & increment;
+            ar & current;
+        }
+    };
+
+    // Decompilation of MCU function at address 0x2f44
+    void setSmoothState(LedSmoothState& state, u8 color) {
+        // Looks like the color is multiplied for better precision
+        state.target = static_cast<s16>(color) * 128;
+
+        // Real HW makes sure ticks_to_progress is not 0 when the led pattern
+        // is set through I2C. We check for it here instead as it's equivalent.
+        const u8 ticks = std::max<u8>(current_pattern.header.ticks_to_progress, 1);
+        state.increment = (state.target - state.current) / ticks;
+    }
+
+    // Decompilation of MCU function at address 0x2dc0
+    static u8 updateSmoothState(LedSmoothState& status) {
+        if (!status.Finished()) {
+            if (std::abs(status.target - status.current) > std::abs(status.increment)) {
+                status.current += status.increment;
+            } else {
+                status.current = status.target;
+            }
+        }
+
+        return static_cast<u8>(status.current / 128);
+    }
+
+    // Decompilation of MCU function at address 0x2f6b
+    // This function is called every 1/512 seconds
+    void TickMCULed() {
+
+        // Here, a few things happen.
+        // If a global variable is set to 2 (0xff904), the led state is cleared.
+        // If a global variable bit 0 is set (0xffe98), this function does not run at all.
+        // If a global variable bit 7 is set (0xffe97), this function takes another path which
+        //  runs function 0x2f1d instead of setSmoothState() to set the LED smooth status.
+        //  This function seems to setup smooth to fade to off state.
+        // TODO(PabloMK7): Figure out what those mean. Maybe power on/off related
+
+        if (pattern_changed) {
+            pattern_changed = false;
+            status_finished = false;
+            ticks_to_next_index = 0;
+            index = 0;
+        } else {
+            if (ticks_to_next_index == 0) {
+                ticks_to_next_index = current_pattern.header.ticks_per_index;
+
+                if (index < InfoLedPattern::PATTERN_INDEX_COUNT - 1) {
+                    status_finished = false;
+                    index = (index + 1) % InfoLedPattern::PATTERN_INDEX_COUNT;
+                    last_index_repeat_times = 0;
+                } else {
+                    status_finished = true;
+                    if (current_pattern.header.last_index_repeat_times != 0xFF) {
+                        last_index_repeat_times++;
+                        if (last_index_repeat_times >
+                            current_pattern.header.last_index_repeat_times) {
+                            index = 0;
+                        }
+                    }
+                }
+
+                // Set smooth for the next index
+                setSmoothState(state_r, current_pattern.r[index]);
+                setSmoothState(state_g, current_pattern.g[index]);
+                setSmoothState(state_b, current_pattern.b[index]);
+            }
+            ticks_to_next_index--;
+        }
+
+        // Update smooth state
+        result_color.r() = updateSmoothState(state_r);
+        result_color.g() = updateSmoothState(state_g);
+        result_color.b() = updateSmoothState(state_b);
+    }
+
+private:
+    InfoLedPattern current_pattern{};
+
+    bool pattern_changed = false;
+    bool status_finished = false;
+
+    u8 ticks_to_next_index = 0;
+    u8 index = 0;
+    u8 last_index_repeat_times = 0;
+
+    LedSmoothState state_r{};
+    LedSmoothState state_g{};
+    LedSmoothState state_b{};
+
+    Common::Vec3<u8> result_color{};
+
+    s64 arm_time_ns = 0;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int) {
+        ar & current_pattern;
+        ar & pattern_changed;
+        ar & status_finished;
+        ar & ticks_to_next_index;
+        ar & index;
+        ar & last_index_repeat_times;
+        ar & state_r;
+        ar & state_g;
+        ar & state_b;
+        ar & result_color;
+        ar & arm_time_ns;
+    }
+};
+
+RTC::RTC(Core::System& _system) : ServiceFramework("mcu::RTC", 1), system(_system) {
+    static const FunctionInfo functions[] = {
+        // clang-format off
+        {0x003B, &RTC::SetInfoLEDPattern, "SetInfoLEDPattern"},
+        {0x003C, &RTC::SetInfoLEDPatternHeader, "SetInfoLEDPattern"},
+        {0x003D, &RTC::GetInfoLEDStatus, "SetInfoLEDPattern"},
+        // clang-format on
+    };
+    RegisterHandlers(functions);
+
+    info_led = std::make_unique<InfoLedHandler>();
+    info_led_tick_event =
+        system.Kernel().timing.RegisterEvent("MCUTickInfoLED", [this](u64, s64 cycles_late) {
+            info_led->Tick(cycles_late);
+            system.SetInfoLEDColor(info_led->Color());
+            if (info_led->NeedsTicking()) {
+                system.Kernel().timing.ScheduleEvent(nsToCycles(InfoLedHandler::CALLBACK_PERIOD_NS),
+                                                     info_led_tick_event, 0, 1);
+            } else {
+                info_led_ticking = false;
+            }
+        });
+}
+
+RTC::~RTC() {}
+
+void RTC::UpdateInfoLEDPattern(const InfoLedPattern& pat) {
+    info_led->SetPattern(pat);
+    if (!info_led_ticking) {
+        system.Kernel().timing.ScheduleEvent(0, info_led_tick_event, 0, 1);
+        info_led_ticking = true;
+    }
+}
+
+void RTC::UpdateInfoLEDHeader(const InfoLedPattern::Header& header) {
+    info_led->SetHeader(header);
+    if (!info_led_ticking) {
+        system.Kernel().timing.ScheduleEvent(0, info_led_tick_event, 0, 1);
+        info_led_ticking = true;
+    }
+}
+
+bool RTC::GetInfoLEDStatusFinished() {
+    return info_led->Status();
+}
+
+std::shared_ptr<RTC> RTC::GetService(Core::System& system) {
+    return system.ServiceManager().GetService<RTC>("mcu::RTC");
+}
+
+void RTC::SetInfoLEDPattern(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    auto pat = rp.PopRaw<InfoLedPattern>();
+
+    UpdateInfoLEDPattern(pat);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+    rb.Push(ResultSuccess);
+}
+
+void RTC::SetInfoLEDPatternHeader(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    auto head = rp.PopRaw<InfoLedPattern::Header>();
+
+    UpdateInfoLEDHeader(head);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+    rb.Push(ResultSuccess);
+}
+
+void RTC::GetInfoLEDStatus(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
+    rb.Push(ResultSuccess);
+    rb.Push(static_cast<u8>(GetInfoLEDStatusFinished()));
+}
+
+template <class Archive>
+void RTC::serialize(Archive& ar, const unsigned int) {
+    DEBUG_SERIALIZATION_POINT;
+    ar& boost::serialization::base_object<Kernel::SessionRequestHandler>(*this);
+    ar & info_led;
+    ar & info_led_ticking;
+}
+
+} // namespace Service::MCU
diff --git a/src/core/hle/service/mcu/mcu_rtc.h b/src/core/hle/service/mcu/mcu_rtc.h
new file mode 100644
index 000000000..a5a3cd692
--- /dev/null
+++ b/src/core/hle/service/mcu/mcu_rtc.h
@@ -0,0 +1,83 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/core_timing.h"
+#include "core/hle/service/service.h"
+
+namespace Service::MCU {
+class InfoLedHandler;
+
+struct InfoLedPattern {
+    static constexpr size_t PATTERN_INDEX_COUNT = 32;
+
+    struct Header {
+        u8 ticks_per_index{};   // Amount of ticks to stay in the current index (1 tick == 1/512 s)
+        u8 ticks_to_progress{}; // Amount of ticks to go from the previous value to the current
+                                // index value. Normally, this only makes sense to be set to 0 to
+                                // disable interpolation, or equal to "ticks_per_index" for linear
+                                // interpolation. Any other value breaks the interpolation math.
+        u8 last_index_repeat_times{}; // Amount of times to repeat the last index, as if the color
+                                      // array had "last_index_repeat_times" more elements equal to
+                                      // the last array value. (0xFF means repeat forever)
+        u8 padding{};
+    } header;
+
+    // RGB color elements, corresponding to the LED PWM duty cycle.
+    // (0x0 -> fully off, 0xFF -> fully on)
+    std::array<u8, PATTERN_INDEX_COUNT> r{};
+    std::array<u8, PATTERN_INDEX_COUNT> g{};
+    std::array<u8, PATTERN_INDEX_COUNT> b{};
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int) {
+        ar & header.ticks_per_index;
+        ar & header.ticks_to_progress;
+        ar & header.last_index_repeat_times;
+        ar & header.padding;
+
+        ar & r;
+        ar & g;
+        ar & b;
+    }
+};
+static_assert(sizeof(InfoLedPattern) == 0x64);
+
+class RTC final : public ServiceFramework<RTC> {
+public:
+    explicit RTC(Core::System& _system);
+    ~RTC();
+
+    void UpdateInfoLEDPattern(const InfoLedPattern& pat);
+
+    void UpdateInfoLEDHeader(const InfoLedPattern::Header& header);
+
+    bool GetInfoLEDStatusFinished();
+
+    static std::shared_ptr<RTC> GetService(Core::System& system);
+
+private:
+    void SetInfoLEDPattern(Kernel::HLERequestContext& ctx);
+
+    void SetInfoLEDPatternHeader(Kernel::HLERequestContext& ctx);
+
+    void GetInfoLEDStatus(Kernel::HLERequestContext& ctx);
+
+    Core::System& system;
+
+    std::unique_ptr<InfoLedHandler> info_led;
+    Core::TimingEventType* info_led_tick_event{};
+    bool info_led_ticking{};
+
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int);
+    friend class boost::serialization::access;
+};
+
+} // namespace Service::MCU
+
+SERVICE_CONSTRUCT(Service::MCU::RTC)
+BOOST_CLASS_EXPORT_KEY(Service::MCU::RTC)
diff --git a/src/core/hle/service/ptm/ptm.cpp b/src/core/hle/service/ptm/ptm.cpp
index 1cdb64c88..f0e5769e1 100644
--- a/src/core/hle/service/ptm/ptm.cpp
+++ b/src/core/hle/service/ptm/ptm.cpp
@@ -12,6 +12,7 @@
 #include "core/file_sys/errors.h"
 #include "core/file_sys/file_backend.h"
 #include "core/hle/kernel/shared_page.h"
+#include "core/hle/service/mcu/mcu_rtc.h"
 #include "core/hle/service/ptm/ptm.h"
 #include "core/hle/service/ptm/ptm_gets.h"
 #include "core/hle/service/ptm/ptm_play.h"
@@ -133,6 +134,51 @@ void Module::Interface::CheckNew3DS(Kernel::HLERequestContext& ctx) {
     Service::PTM::CheckNew3DS(rb);
 }
 
+void Module::Interface::SetInfoLEDPattern(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    auto pat = rp.PopRaw<MCU::InfoLedPattern>();
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+
+    auto mcu_rtc = MCU::RTC::GetService(ptm->system);
+    if (mcu_rtc) {
+        mcu_rtc->UpdateInfoLEDPattern(pat);
+        rb.Push(ResultSuccess);
+    } else {
+        rb.Push(ResultUnknown);
+    }
+}
+
+void Module::Interface::SetInfoLEDPatternHeader(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+    auto head = rp.PopRaw<MCU::InfoLedPattern::Header>();
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+
+    auto mcu_rtc = MCU::RTC::GetService(ptm->system);
+    if (mcu_rtc) {
+        mcu_rtc->UpdateInfoLEDHeader(head);
+        rb.Push(ResultSuccess);
+    } else {
+        rb.Push(ResultUnknown);
+    }
+}
+
+void Module::Interface::GetInfoLEDStatus(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
+
+    auto mcu_rtc = MCU::RTC::GetService(ptm->system);
+    if (mcu_rtc) {
+        rb.Push(ResultSuccess);
+        rb.Push(static_cast<u8>(mcu_rtc->GetInfoLEDStatusFinished()));
+    } else {
+        rb.Push(ResultUnknown);
+        rb.Push(u8{});
+    }
+}
+
 void Module::Interface::GetSystemTime(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx);
 
diff --git a/src/core/hle/service/ptm/ptm.h b/src/core/hle/service/ptm/ptm.h
index 2e3e5af55..95863350a 100644
--- a/src/core/hle/service/ptm/ptm.h
+++ b/src/core/hle/service/ptm/ptm.h
@@ -1,4 +1,4 @@
-// Copyright 2015 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -139,6 +139,12 @@ public:
          */
         void CheckNew3DS(Kernel::HLERequestContext& ctx);
 
+        void SetInfoLEDPattern(Kernel::HLERequestContext& ctx);
+
+        void SetInfoLEDPatternHeader(Kernel::HLERequestContext& ctx);
+
+        void GetInfoLEDStatus(Kernel::HLERequestContext& ctx);
+
         /**
          * PTM::GetSystemTime service function
          *  Outputs:
diff --git a/src/core/hle/service/ptm/ptm_sysm.cpp b/src/core/hle/service/ptm/ptm_sysm.cpp
index f827517d3..aced50518 100644
--- a/src/core/hle/service/ptm/ptm_sysm.cpp
+++ b/src/core/hle/service/ptm/ptm_sysm.cpp
@@ -1,4 +1,4 @@
-// Copyright 2015 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -41,9 +41,9 @@ PTM_S_Common::PTM_S_Common(std::shared_ptr<Module> ptm, const char* name)
         {0x0408, nullptr, "Awake"},
         {0x0409, nullptr, "RebootAsync"},
         {0x040A, &PTM_S_Common::CheckNew3DS, "CheckNew3DS"},
-        {0x0801, nullptr, "SetInfoLEDPattern"},
-        {0x0802, nullptr, "SetInfoLEDPatternHeader"},
-        {0x0803, nullptr, "GetInfoLEDStatus"},
+        {0x0801, &PTM_S_Common::SetInfoLEDPattern, "SetInfoLEDPattern"},
+        {0x0802, &PTM_S_Common::SetInfoLEDPatternHeader, "SetInfoLEDPatternHeader"},
+        {0x0803, &PTM_S_Common::GetInfoLEDStatus, "GetInfoLEDStatus"},
         {0x0804, nullptr, "SetBatteryEmptyLEDPattern"},
         {0x0805, nullptr, "ClearStepHistory"},
         {0x0806, nullptr, "SetStepHistory"},
diff --git a/src/core/hw/aes/key.cpp b/src/core/hw/aes/key.cpp
index 2e46de838..80aa84d36 100644
--- a/src/core/hw/aes/key.cpp
+++ b/src/core/hw/aes/key.cpp
@@ -18,7 +18,9 @@
 #include "core/hle/service/fs/archive.h"
 #include "core/hw/aes/arithmetic128.h"
 #include "core/hw/aes/key.h"
+#ifdef ENABLE_BUILTIN_KEYBLOB
 #include "core/hw/default_keys.h"
+#endif // ENABLE_BUILTIN_KEYBLOB
 #include "core/hw/rsa/rsa.h"
 #include "core/loader/loader.h"
 
@@ -130,8 +132,8 @@ std::array<std::optional<AESKey>, NumDlpNfcKeyYs> dlp_nfc_key_y_slots;
 std::array<NfcSecret, NumNfcSecrets> nfc_secrets;
 AESIV nfc_iv;
 
-AESKey otp_key;
-AESIV otp_iv;
+AESKey otp_key{};
+AESIV otp_iv{};
 
 // gets xor'd with the mac address to produce the final iv
 AESIV dlp_checksum_mod_iv;
@@ -297,6 +299,7 @@ std::istringstream GetKeysStream() {
     if (file.is_open()) {
         return std::istringstream(std::string(std::istreambuf_iterator<char>(file), {}));
     } else {
+#ifdef ENABLE_BUILTIN_KEYBLOB
         // The key data is encrypted in the source to prevent easy access to it for unintended
         // purposes.
         std::vector<u8> kiv(16);
@@ -304,6 +307,9 @@ std::istringstream GetKeysStream() {
         CryptoPP::CBC_Mode<CryptoPP::AES>::Decryption(kiv.data(), kiv.size(), kiv.data())
             .ProcessData(reinterpret_cast<u8*>(s.data()), default_keys_enc, s.size());
         return std::istringstream(s);
+#else
+        return std::istringstream("");
+#endif // ENABLE_BUILTIN_KEYBLOB
     }
 }
 
diff --git a/src/core/hw/default_keys.h b/src/core/hw/default_keys.h
index 554b74ae1..22fdcdc64 100644
--- a/src/core/hw/default_keys.h
+++ b/src/core/hw/default_keys.h
@@ -2,7 +2,13 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-unsigned char default_keys_enc[] = {
+#pragma once
+
+#ifndef ENABLE_BUILTIN_KEYBLOB
+#error Attempting to include default_keys.h, but ENABLE_BUILTIN_KEYBLOB is disabled.
+#endif
+
+constexpr unsigned char default_keys_enc[] = {
     0x4E, 0x81, 0xE9, 0x54, 0xCC, 0xDE, 0xFD, 0x56, 0x7D, 0xD2, 0x72, 0xE6, 0xD9, 0xCD, 0x8E, 0x11,
     0xE1, 0x7F, 0x74, 0xF4, 0xFC, 0x54, 0xA6, 0xA4, 0x27, 0xC2, 0xD7, 0x50, 0xEA, 0xE7, 0xBE, 0xC9,
     0xA7, 0x5E, 0xE0, 0x2E, 0x4A, 0xBE, 0xF5, 0xD5, 0x0D, 0x22, 0x76, 0x2E, 0xB6, 0x80, 0xD8, 0x54,
@@ -468,4 +474,4 @@ unsigned char default_keys_enc[] = {
     0x14, 0x79, 0xD0, 0xA8, 0x3C, 0xB3, 0x46, 0xC3, 0xDA, 0x6C, 0x0C, 0xEC, 0x2A, 0xB2, 0x9B, 0x21,
     0xB2, 0xAD, 0x8C, 0x0C, 0x85, 0x9A, 0x8D, 0x7C, 0x10, 0xEA, 0x51, 0x1D, 0x2D, 0xDE, 0x7D, 0x8F};
 
-const long int default_keys_enc_size = sizeof(default_keys_enc);
+constexpr long int default_keys_enc_size = sizeof(default_keys_enc);
diff --git a/src/core/hw/rsa/rsa.h b/src/core/hw/rsa/rsa.h
index b6dd2c1ca..54e944caa 100644
--- a/src/core/hw/rsa/rsa.h
+++ b/src/core/hw/rsa/rsa.h
@@ -1,4 +1,4 @@
-// Copyright 2020 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -14,7 +14,8 @@ class RsaSlot {
 public:
     RsaSlot() = default;
     RsaSlot(std::vector<u8> exponent, std::vector<u8> modulus)
-        : init(true), exponent(std::move(exponent)), modulus(std::move(modulus)) {}
+        : init_exponent(true), init_modulus(true), exponent(std::move(exponent)),
+          modulus(std::move(modulus)) {}
 
     std::vector<u8> ModularExponentiation(std::span<const u8> message,
                                           int out_size_bytes = -1) const;
@@ -25,11 +26,12 @@ public:
 
     explicit operator bool() const {
         // TODO(B3N30): Maybe check if exponent and modulus are vailid
-        return init;
+        return init_exponent && init_modulus;
     }
 
     void SetExponent(const std::vector<u8>& e) {
         exponent = e;
+        init_exponent = true;
     }
 
     const std::vector<u8>& GetExponent() const {
@@ -38,6 +40,7 @@ public:
 
     void SetModulus(const std::vector<u8>& m) {
         modulus = m;
+        init_modulus = true;
     }
 
     const std::vector<u8>& GetModulus() const {
@@ -46,6 +49,7 @@ public:
 
     void SetPrivateD(const std::vector<u8>& d) {
         private_d = d;
+        init_private_d = true;
     }
 
     const std::vector<u8>& GetPrivateD() const {
@@ -53,7 +57,9 @@ public:
     }
 
 private:
-    bool init = false;
+    bool init_exponent = false;
+    bool init_modulus = false;
+    bool init_private_d = false;
     std::vector<u8> exponent;
     std::vector<u8> modulus;
     std::vector<u8> private_d;
diff --git a/src/core/hw/unique_data.cpp b/src/core/hw/unique_data.cpp
index 8d7ac9035..4ebc2091a 100644
--- a/src/core/hw/unique_data.cpp
+++ b/src/core/hw/unique_data.cpp
@@ -27,13 +27,17 @@ static MovableSedFull movable;
 static bool movable_signature_valid = false;
 
 bool SecureInfoA::VerifySignature() const {
-    return HW::RSA::GetSecureInfoSlot().Verify(
-        std::span<const u8>(reinterpret_cast<const u8*>(&body), sizeof(body)), signature);
+    auto sec_info_slot = HW::RSA::GetSecureInfoSlot();
+    return sec_info_slot &&
+           sec_info_slot.Verify(
+               std::span<const u8>(reinterpret_cast<const u8*>(&body), sizeof(body)), signature);
 }
 
 bool LocalFriendCodeSeedB::VerifySignature() const {
-    return HW::RSA::GetLocalFriendCodeSeedSlot().Verify(
-        std::span<const u8>(reinterpret_cast<const u8*>(&body), sizeof(body)), signature);
+    auto lfcs_slot = HW::RSA::GetLocalFriendCodeSeedSlot();
+    return lfcs_slot &&
+           HW::RSA::GetLocalFriendCodeSeedSlot().Verify(
+               std::span<const u8>(reinterpret_cast<const u8*>(&body), sizeof(body)), signature);
 }
 
 bool MovableSed::VerifySignature() const {
@@ -42,6 +46,9 @@ bool MovableSed::VerifySignature() const {
 
 SecureDataLoadStatus LoadSecureInfoA() {
     if (secure_info_a.IsValid()) {
+        if (!HW::RSA::GetSecureInfoSlot()) {
+            return SecureDataLoadStatus::CannotValidateSignature;
+        }
         return secure_info_a_signature_valid
                    ? SecureDataLoadStatus::Loaded
                    : (secure_info_a_region_changed ? SecureDataLoadStatus::RegionChanged
@@ -63,8 +70,11 @@ SecureDataLoadStatus LoadSecureInfoA() {
         return SecureDataLoadStatus::IOError;
     }
 
-    HW::AES::InitKeys();
     secure_info_a_region_changed = false;
+    HW::AES::InitKeys();
+    if (!HW::RSA::GetSecureInfoSlot()) {
+        return SecureDataLoadStatus::CannotValidateSignature;
+    }
     secure_info_a_signature_valid = secure_info_a.VerifySignature();
     if (!secure_info_a_signature_valid) {
         // Check if the file has been region changed
@@ -93,6 +103,9 @@ SecureDataLoadStatus LoadSecureInfoA() {
 
 SecureDataLoadStatus LoadLocalFriendCodeSeedB() {
     if (local_friend_code_seed_b.IsValid()) {
+        if (!HW::RSA::GetLocalFriendCodeSeedSlot()) {
+            return SecureDataLoadStatus::CannotValidateSignature;
+        }
         return local_friend_code_seed_b_signature_valid ? SecureDataLoadStatus::Loaded
                                                         : SecureDataLoadStatus::InvalidSignature;
     }
@@ -114,6 +127,9 @@ SecureDataLoadStatus LoadLocalFriendCodeSeedB() {
     }
 
     HW::AES::InitKeys();
+    if (!HW::RSA::GetLocalFriendCodeSeedSlot()) {
+        return SecureDataLoadStatus::CannotValidateSignature;
+    }
     local_friend_code_seed_b_signature_valid = local_friend_code_seed_b.VerifySignature();
     if (!local_friend_code_seed_b_signature_valid) {
         LOG_WARNING(HW, "LocalFriendCodeSeed_B signature check failed");
@@ -128,10 +144,17 @@ SecureDataLoadStatus LoadOTP() {
         return SecureDataLoadStatus::Loaded;
     }
 
+    auto is_all_zero = [](const auto& arr) {
+        return std::all_of(arr.begin(), arr.end(), [](auto x) { return x == 0; });
+    };
+
     const std::string filepath = GetOTPPath();
 
     HW::AES::InitKeys();
     auto otp_keyiv = HW::AES::GetOTPKeyIV();
+    if (is_all_zero(otp_keyiv.first) || is_all_zero(otp_keyiv.second)) {
+        return SecureDataLoadStatus::NoCryptoKeys;
+    }
 
     auto loader_status = otp.Load(filepath, otp_keyiv.first, otp_keyiv.second);
     if (loader_status != Loader::ResultStatus::Success) {
@@ -169,6 +192,9 @@ SecureDataLoadStatus LoadOTP() {
 
 SecureDataLoadStatus LoadMovable() {
     if (movable.IsValid()) {
+        if (!HW::RSA::GetLocalFriendCodeSeedSlot()) {
+            return SecureDataLoadStatus::CannotValidateSignature;
+        }
         return movable_signature_valid ? SecureDataLoadStatus::Loaded
                                        : SecureDataLoadStatus::InvalidSignature;
     }
@@ -193,6 +219,9 @@ SecureDataLoadStatus LoadMovable() {
     }
 
     HW::AES::InitKeys();
+    if (!HW::RSA::GetLocalFriendCodeSeedSlot()) {
+        return SecureDataLoadStatus::CannotValidateSignature;
+    }
     movable_signature_valid = movable.VerifySignature();
     if (!movable_signature_valid) {
         LOG_WARNING(HW, "movable.sed signature check failed");
diff --git a/src/core/hw/unique_data.h b/src/core/hw/unique_data.h
index dd3a4bb8b..3b4f8efbe 100644
--- a/src/core/hw/unique_data.h
+++ b/src/core/hw/unique_data.h
@@ -136,10 +136,12 @@ enum class SecureDataLoadStatus {
     Loaded = 0,
     InvalidSignature = 1,
     RegionChanged = 2,
+    CannotValidateSignature = 3,
 
     NotFound = -1,
     Invalid = -2,
     IOError = -3,
+    NoCryptoKeys = -4,
 };
 
 SecureDataLoadStatus LoadSecureInfoA();
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index abab77c4e..f772fa5f5 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -140,6 +140,7 @@ RasterizerVulkan::RasterizerVulkan(Memory::MemorySystem& memory, Pica::PicaCore&
 RasterizerVulkan::~RasterizerVulkan() = default;
 
 void RasterizerVulkan::TickFrame() {
+    scheduler.WaitWorker();
     res_cache.TickFrame();
 }