diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index fb0160a..c3dc9d1 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -11,6 +11,7 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC" />
     <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
     <uses-feature android:name="android.hardware.microphone" android:required="false" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-feature android:name="android.hardware.camera" android:required="false" />
@@ -43,7 +44,7 @@
             android:name=".MainActivity"
             android:exported="true"
             android:launchMode="singleTask"
-            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout|density|uiMode|keyboard|keyboardHidden|navigation">
+            android:configChanges="orientation|screenSize|smallestScreenSize|screenLayout|density|fontScale|keyboard|keyboardHidden|navigation|uiMode|colorMode|layoutDirection">
             <meta-data
                 android:name="android.app.shortcuts"
                 android:resource="@xml/shortcuts" />
diff --git a/android/app/src/main/java/com/meshchatx/AndroidNotificationBridge.java b/android/app/src/main/java/com/meshchatx/AndroidNotificationBridge.java
index f721832..ebaec61 100644
--- a/android/app/src/main/java/com/meshchatx/AndroidNotificationBridge.java
+++ b/android/app/src/main/java/com/meshchatx/AndroidNotificationBridge.java
@@ -229,6 +229,22 @@ public final class AndroidNotificationBridge {
             PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE
         );
 
+        int id = NOTIFY_BASE_ID;
+        if (dedupeHex != null && dedupeHex.length() >= 8) {
+            try {
+                id = NOTIFY_BASE_ID
+                    + (int) (Long.parseLong(
+                        dedupeHex.substring(0, Math.min(8, dedupeHex.length())), 16) & 0x7fff_ffff);
+            } catch (NumberFormatException ignored) {
+                id = NOTIFY_BASE_ID + (dedupeHex.hashCode() & 0x7fff_ffff);
+            }
+        }
+
+        try {
+            nm.cancel(id);
+        } catch (Exception ignored) {
+        }
+
         NotificationCompat.Builder b = new NotificationCompat.Builder(ctx, MeshChatApplication.CHANNEL_ID_MESSAGES)
             .setSmallIcon(R.drawable.ic_stat_meshchatx)
             .setContentTitle(title)
@@ -237,16 +253,9 @@ public final class AndroidNotificationBridge {
             .setContentIntent(pi)
             .setAutoCancel(true)
             .setCategory(NotificationCompat.CATEGORY_MESSAGE)
-            .setVisibility(NotificationCompat.VISIBILITY_PRIVATE);
-
-        int id = NOTIFY_BASE_ID;
-        if (dedupeHex != null && dedupeHex.length() >= 8) {
-            try {
-                id = NOTIFY_BASE_ID + (int) (Long.parseLong(dedupeHex.substring(0, Math.min(8, dedupeHex.length())), 16) & 0x7fff_ffff);
-            } catch (NumberFormatException ignored) {
-                id = NOTIFY_BASE_ID + (dedupeHex.hashCode() & 0x7fff_ffff);
-            }
-        }
+            .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
+            .setDefaults(NotificationCompat.DEFAULT_ALL)
+            .setOnlyAlertOnce(false);
 
         try {
             nm.notify(id, b.build());
diff --git a/android/app/src/main/java/com/meshchatx/MainActivity.java b/android/app/src/main/java/com/meshchatx/MainActivity.java
index 9f9acab..371d312 100644
--- a/android/app/src/main/java/com/meshchatx/MainActivity.java
+++ b/android/app/src/main/java/com/meshchatx/MainActivity.java
@@ -32,6 +32,7 @@ import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
+import androidx.activity.OnBackPressedCallback;
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.core.app.ActivityCompat;
@@ -196,33 +197,35 @@ public class MainActivity extends AppCompatActivity {
             @Override
             public void onPageFinished(WebView view, String url) {
                 super.onPageFinished(view, url);
-                if (!isStartupRequest(url)) {
+                if (!startupPageLoaded) {
+                    if (!isStartupRequest(url)) {
+                        return;
+                    }
+                    if (startupRequestHadLoadError) {
+                        return;
+                    }
+                    startupPageLoaded = true;
+                    mainHandler.removeCallbacksAndMessages(null);
+                    hideStartupLoadingOverlay();
+                    dispatchPendingIntentUri();
+                    dispatchCallNotificationAction();
                     return;
                 }
-                if (startupRequestHadLoadError) {
-                    return;
-                }
-                startupPageLoaded = true;
-                mainHandler.removeCallbacksAndMessages(null);
-                webView.setVisibility(android.view.View.VISIBLE);
-                loadingLogo.setVisibility(android.view.View.GONE);
-                progressBar.setVisibility(android.view.View.GONE);
-                loadingText.setVisibility(android.view.View.GONE);
-                errorText.setVisibility(android.view.View.GONE);
-                dispatchPendingIntentUri();
-                dispatchCallNotificationAction();
+                hideStartupLoadingOverlay();
             }
 
             @Override
             public void onPageStarted(WebView view, String url, android.graphics.Bitmap favicon) {
                 super.onPageStarted(view, url, favicon);
-                if (isStartupRequest(url)) {
+                if (!startupPageLoaded && isStartupRequest(url)) {
                     startupRequestHadLoadError = false;
-                    if (!startupPageLoaded) {
-                        webView.setVisibility(android.view.View.INVISIBLE);
-                    }
+                    webView.setVisibility(android.view.View.INVISIBLE);
+                    progressBar.setVisibility(android.view.View.VISIBLE);
+                    return;
+                }
+                if (!startupPageLoaded) {
+                    progressBar.setVisibility(android.view.View.VISIBLE);
                 }
-                progressBar.setVisibility(android.view.View.VISIBLE);
             }
 
             @Override
@@ -371,6 +374,22 @@ public class MainActivity extends AppCompatActivity {
         handleIncomingIntent(getIntent());
         consumeCallIntentForPending(getIntent());
 
+        getOnBackPressedDispatcher().addCallback(
+            this,
+            new OnBackPressedCallback(true) {
+                @Override
+                public void handleOnBackPressed() {
+                    if (webView != null && webView.canGoBack()) {
+                        webView.goBack();
+                    } else {
+                        setEnabled(false);
+                        MainActivity.this.getOnBackPressedDispatcher().onBackPressed();
+                        setEnabled(true);
+                    }
+                }
+            }
+        );
+
         startMeshChatServer();
         scheduleConnectionRetry("Connecting to local server...");
     }
@@ -674,6 +693,24 @@ public class MainActivity extends AppCompatActivity {
         return sw.toString();
     }
 
+    private void hideStartupLoadingOverlay() {
+        if (webView != null) {
+            webView.setVisibility(android.view.View.VISIBLE);
+        }
+        if (loadingLogo != null) {
+            loadingLogo.setVisibility(android.view.View.GONE);
+        }
+        if (progressBar != null) {
+            progressBar.setVisibility(android.view.View.GONE);
+        }
+        if (loadingText != null) {
+            loadingText.setVisibility(android.view.View.GONE);
+        }
+        if (errorText != null && !backendFailed) {
+            errorText.setVisibility(android.view.View.GONE);
+        }
+    }
+
     private void showStartupError(String message) {
         runOnUiThread(() -> {
             mainHandler.removeCallbacksAndMessages(null);
@@ -718,15 +755,6 @@ public class MainActivity extends AppCompatActivity {
         return phase + " (" + connectionAttempts + "/" + MAX_CONNECTION_ATTEMPTS + ")";
     }
 
-    @Override
-    public void onBackPressed() {
-        if (webView.canGoBack()) {
-            webView.goBack();
-        } else {
-            super.onBackPressed();
-        }
-    }
-
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
diff --git a/android/app/src/main/java/com/meshchatx/MeshChatApplication.java b/android/app/src/main/java/com/meshchatx/MeshChatApplication.java
index 371df98..9702a4b 100644
--- a/android/app/src/main/java/com/meshchatx/MeshChatApplication.java
+++ b/android/app/src/main/java/com/meshchatx/MeshChatApplication.java
@@ -51,7 +51,7 @@ public class MeshChatApplication extends PyApplication {
         NotificationChannel messages = new NotificationChannel(
             CHANNEL_ID_MESSAGES,
             getString(R.string.notification_channel_messages_name),
-            NotificationManager.IMPORTANCE_DEFAULT
+            NotificationManager.IMPORTANCE_HIGH
         );
         messages.setDescription(getString(R.string.notification_channel_messages_desc));
         nm.createNotificationChannel(messages);