diff --git a/ReadMe.txt b/ReadMe.txt
index a7976e9..598e010 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -58,14 +58,13 @@ LINKS
 
 CHANGES
 
-Version 2.7 (2024-06-XX)
+Version 2.7 (2024-06-12)
 
 - Updated source code with Emu48 version 1.65+. This new version improve the serial communication.
-- Attempt to fix haptic feedback with Android 13 (API deprecation).
-- Patch the ROM files to prevent the calculator to sleep (Fix #22).
+- Fix haptic feedback with Android 12 (API deprecation).
+- Patch the ROM files to prevent the calculator to sleep, but not for HP 48gII/49G/50g (Fix #22).
 - Fix a potential crash about the permission to access the files.
 - Require at least Android 5.0 (4.4 previously).
-BUG: In Emu48 with HP49 FlashCard, click on Android RECENT button, and comes back in the APP -> we lost the FlashCard!
 
 
 Version 2.6 (2022-08-19)
@@ -269,8 +268,8 @@ FAQ
 
 TODO
 
-- Test XSEND.
-- Haptic feedback does not seems to work on Android 13, should check (J. Majors).
+- NDK 26 does not compile
+- Patching 49G to disable 10 min auto off causes a reset when touching the Recent button and coming back to the app.
 - Add an "haptic" feedback with a sound instead of a vibration (F. Giampietro).
 - Add a Cancel button to the HP48 memory card creator dialog.
 - Manage the HP 48 port 2 with the same kind of interface for the memory card.
@@ -285,7 +284,7 @@ TODO
 
 BUILD
 
-Emu48 for Android is built with Android Studio 2021.1.1 (2022).
+Emu48 for Android is built with Android Studio 2023.3.1 (2024).
 And to generate an installable APK file with a real Android device, it MUST be signed.
 
 Either use Android Studio:
diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index 5f61ea0..c7869d9 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 # Sets the minimum version of CMake required to build the native library.
 
-cmake_minimum_required(VERSION 3.4.1)
+cmake_minimum_required(VERSION 3.6.0)
 
 #add_compile_options(-DDEBUG_DISPLAY)
 #add_compile_options(-DDEBUG_SOUND)
@@ -31,6 +31,10 @@ add_compile_options(-DLODEPNG_NO_COMPILE_CPP)
 
 add_compile_options(-DEMUXX=48)
 
+#add_compile_options(-Wno-error=implicit-function-declaration)
+add_compile_options(-fpermissive)
+add_compile_options(-Wno-error=incompatible-pointer-types)
+
 if(CMAKE_BUILD_TYPE STREQUAL Release)
 	message("RELEASE BUILD")
 	add_compile_options(-Ofast)
@@ -103,4 +107,4 @@ target_link_libraries( # Specifies the target library.
         android
         jnigraphics
         OpenSLES
-        log)
+        log)
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index 57629ff..0288189 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -33,11 +33,24 @@ android {
     defaultConfig {
         applicationId "org.emulator.forty.eight"
         minSdk 21
-        //targetSdk 33
+        targetSdk 34
         versionCode 26
         versionName "2.7"
         setProperty("archivesBaseName", "Emu48-v$versionName")
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        externalNativeBuild {
+            cmake {
+//                cppFlags '-std=c++11'
+//                cppFlags '-std=gnu99'
+//                cppFlags '-std=c99'
+//                cppFlags '-std=c++11 -std=gnu99'
+
+//                cppFlags '-std=c++11 -Wno-error=implicit-function-declaration'
+//                add_compile_options(-fpermissive)
+                cppFlags '-std=c++11 -fpermissive -Wno-error=incompatible-pointer-types'
+
+            }
+        }
     }
 
     if (canSign) {
@@ -75,6 +88,7 @@ android {
             //version '3.18.1'
         }
     }
+    ndkVersion '25.1.8937393'
 }
 
 dependencies {
diff --git a/app/src/main/assets/ReadMe.txt b/app/src/main/assets/ReadMe.txt
index f0bac64..12f72ab 100644
--- a/app/src/main/assets/ReadMe.txt
+++ b/app/src/main/assets/ReadMe.txt
@@ -58,11 +58,11 @@ LINKS
 
 CHANGES
 
-Version 2.7 (2024-06-09)
+Version 2.7 (2024-06-12)
 
 - Updated source code with Emu48 version 1.65+. This new version improve the serial communication.
 - Attempt to fix haptic feedback with Android 13 (API deprecation).
-- Patch the ROM files to prevent the calculator to sleep (Fix #22).
+- Patch the ROM files to prevent the calculator to sleep, but not for HP 48gII/49G/50g (Fix #22).
 - Fix a potential crash about the permission to access the files.
 - Require at least Android 5.0 (4.4 previously).
 
diff --git a/app/src/main/assets/calculators/calypso2k.kml b/app/src/main/assets/calculators/calypso2k.kml
index 91587ce..0ea4a12 100644
--- a/app/src/main/assets/calculators/calypso2k.kml
+++ b/app/src/main/assets/calculators/calypso2k.kml
@@ -11,7 +11,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "calypso2k.png"
 	Color  0 0 0 0
 	#Scale 3 9
diff --git a/app/src/main/assets/calculators/calypso4k.kml b/app/src/main/assets/calculators/calypso4k.kml
index a1a1a96..3318b6d 100644
--- a/app/src/main/assets/calculators/calypso4k.kml
+++ b/app/src/main/assets/calculators/calypso4k.kml
@@ -11,7 +11,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "calypso4k.png"
 	Color  0 0 0 0
 	#Scale 3 18
diff --git a/app/src/main/assets/calculators/real48gii-l.kml b/app/src/main/assets/calculators/real48gii-l.kml
index 2b97566..5a08136 100644
--- a/app/src/main/assets/calculators/real48gii-l.kml
+++ b/app/src/main/assets/calculators/real48gii-l.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "2"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real48gii-l.png"
 	Icon   "48gii.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real48gii-lc.kml b/app/src/main/assets/calculators/real48gii-lc.kml
index a38e3c4..f1355c5 100644
--- a/app/src/main/assets/calculators/real48gii-lc.kml
+++ b/app/src/main/assets/calculators/real48gii-lc.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "2"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real48gii-lc.png"
 	Icon   "48gii.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real49g-l.kml b/app/src/main/assets/calculators/real49g-l.kml
index 3fd6d47..a3cb173 100644
--- a/app/src/main/assets/calculators/real49g-l.kml
+++ b/app/src/main/assets/calculators/real49g-l.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "X"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real49g-l.png"
 	Icon   "49g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real49g-lc.kml b/app/src/main/assets/calculators/real49g-lc.kml
index a99af4e..c8bbb9c 100644
--- a/app/src/main/assets/calculators/real49g-lc.kml
+++ b/app/src/main/assets/calculators/real49g-lc.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "X"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real49g-lc.png"
 	Icon   "49g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real49gp-l.kml b/app/src/main/assets/calculators/real49gp-l.kml
index 76db014..a4e1d2b 100644
--- a/app/src/main/assets/calculators/real49gp-l.kml
+++ b/app/src/main/assets/calculators/real49gp-l.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "Q"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real49gp-l.png"
 	Icon   "49gp.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real49gp-lc.kml b/app/src/main/assets/calculators/real49gp-lc.kml
index 5e463f5..1e656cf 100644
--- a/app/src/main/assets/calculators/real49gp-lc.kml
+++ b/app/src/main/assets/calculators/real49gp-lc.kml
@@ -14,7 +14,6 @@ Global
 	Author "Eric Rechlin"
 	Model  "Q"
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real49gp-lc.png"
 	Icon   "49gp.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real50g-blue-l.kml b/app/src/main/assets/calculators/real50g-blue-l.kml
index f9ca676..8637564 100644
--- a/app/src/main/assets/calculators/real50g-blue-l.kml
+++ b/app/src/main/assets/calculators/real50g-blue-l.kml
@@ -14,7 +14,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real50g-blue-l.png"
 	Icon   "50g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real50g-blue-lc.kml b/app/src/main/assets/calculators/real50g-blue-lc.kml
index 70bc428..3a40fd5 100644
--- a/app/src/main/assets/calculators/real50g-blue-lc.kml
+++ b/app/src/main/assets/calculators/real50g-blue-lc.kml
@@ -14,7 +14,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real50g-blue-lc.png"
 	Icon   "50g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real50g-l.kml b/app/src/main/assets/calculators/real50g-l.kml
index 7e15fb3..22e59c8 100644
--- a/app/src/main/assets/calculators/real50g-l.kml
+++ b/app/src/main/assets/calculators/real50g-l.kml
@@ -15,7 +15,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real50g-l.png"
 	Icon   "50g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/assets/calculators/real50g-lc.kml b/app/src/main/assets/calculators/real50g-lc.kml
index a963c92..36140dc 100644
--- a/app/src/main/assets/calculators/real50g-lc.kml
+++ b/app/src/main/assets/calculators/real50g-lc.kml
@@ -15,7 +15,6 @@ Global
 	Model  "Q"
 	Class  50
 	Rom    "rom.49g"
-	Patch  "patch.49g"
 	Bitmap "real50g-lc.png"
 	Icon   "50g.ico"
 	Color  0 190 190 190
diff --git a/app/src/main/java/org/emulator/calculator/Serial.java b/app/src/main/java/org/emulator/calculator/Serial.java
index f823e26..5d351a1 100644
--- a/app/src/main/java/org/emulator/calculator/Serial.java
+++ b/app/src/main/java/org/emulator/calculator/Serial.java
@@ -7,6 +7,7 @@ import android.content.Intent;
 import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbDeviceConnection;
 import android.hardware.usb.UsbManager;
+import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.SystemClock;
@@ -156,7 +157,8 @@ public class Serial {
 		}
 		if(usbConnection == null && usbPermission == UsbPermission.Unknown && !usbManager.hasPermission(driver.getDevice())) {
 			usbPermission = UsbPermission.Requested;
-			PendingIntent usbPermissionIntent = PendingIntent.getBroadcast(context, 0, new Intent(INTENT_ACTION_GRANT_USB), 0);
+			int flags = Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ? PendingIntent.FLAG_MUTABLE : 0;
+			PendingIntent usbPermissionIntent = PendingIntent.getBroadcast(context, 0, new Intent(INTENT_ACTION_GRANT_USB), flags);
 			usbManager.requestPermission(driver.getDevice(), usbPermissionIntent);
 			if(debug) Log.d(TAG, "Request permission");
 			connectionStatus = "serial_connection_failed_user_has_not_given_permission";
diff --git a/app/src/main/java/org/emulator/calculator/Utils.java b/app/src/main/java/org/emulator/calculator/Utils.java
index ab6a8cc..f67fae1 100644
--- a/app/src/main/java/org/emulator/calculator/Utils.java
+++ b/app/src/main/java/org/emulator/calculator/Utils.java
@@ -220,14 +220,11 @@ public class Utils {
 
 	public static void vibrate(Vibrator vibrator, int durationInMilliSecond) {
 		if(vibrator != null && durationInMilliSecond > 0) {
-			if (Build.VERSION.SDK_INT >= 33)
-				// https://developer.android.com/reference/android/os/Vibrator#vibrate(android.os.VibrationEffect,%20android.os.VibrationAttributes)
-				vibrator.vibrate(VibrationEffect.createOneShot(durationInMilliSecond, VibrationAttributes.USAGE_TOUCH));
-			else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-				// https://developer.android.com/reference/android/os/Vibrator#vibrate(android.os.VibrationEffect,%20android.media.AudioAttributes)
-				vibrator.vibrate(VibrationEffect.createOneShot(durationInMilliSecond, VibrationEffect.DEFAULT_AMPLITUDE));
+			long[] vibratePattern = { 0, durationInMilliSecond, 1000 };
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+				vibrator.vibrate(VibrationEffect.createWaveform(vibratePattern, -1));
 			else
-				//deprecated in API 26
+				// Deprecated in API 26
 				vibrator.vibrate(durationInMilliSecond);
 		}
 	}
diff --git a/app/src/main/java/org/emulator/forty/eight/MainActivity.java b/app/src/main/java/org/emulator/forty/eight/MainActivity.java
index 96f69a2..a88ef9c 100644
--- a/app/src/main/java/org/emulator/forty/eight/MainActivity.java
+++ b/app/src/main/java/org/emulator/forty/eight/MainActivity.java
@@ -30,6 +30,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.ParcelFileDescriptor;
 import android.os.Vibrator;
+import android.os.VibratorManager;
 import android.util.Log;
 import android.util.SparseArray;
 import android.view.LayoutInflater;
@@ -165,7 +166,12 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
 	    settings = EmuApplication.getSettings();
 	    settings.setIsDefaultSettings(true);
 
-	    vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+	    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+		    vibrator = ((VibratorManager)getSystemService(Context.VIBRATOR_MANAGER_SERVICE)).getDefaultVibrator();
+	    } else {
+		    // Deprecated in API 31
+		    vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
+	    }
 
         ViewGroup mainScreenContainer = findViewById(R.id.main_screen_container);
         mainScreenView = new MainScreenView(this);
diff --git a/app/src/main/java/org/emulator/forty/eight/SettingsFragment.java b/app/src/main/java/org/emulator/forty/eight/SettingsFragment.java
index 558ac59..07bd8c7 100644
--- a/app/src/main/java/org/emulator/forty/eight/SettingsFragment.java
+++ b/app/src/main/java/org/emulator/forty/eight/SettingsFragment.java
@@ -20,8 +20,10 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Vibrator;
+import android.os.VibratorManager;
 import android.text.InputType;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -214,7 +216,13 @@ public class SettingsFragment extends AppCompatDialogFragment {
 
 			// Haptic feedback settings
 
-			Vibrator vibrator = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+			Vibrator vibrator;
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+				vibrator = ((VibratorManager)requireContext().getSystemService(Context.VIBRATOR_MANAGER_SERVICE)).getDefaultVibrator();
+			} else {
+				vibrator = (Vibrator) requireContext().getSystemService(Context.VIBRATOR_SERVICE);
+			}
+
 			SeekBarPreference preferenceHapticFeedbackDuration = findPreference("settings_haptic_feedback_duration");
 			if(preferenceHapticFeedbackDuration != null) {
 				preferenceHapticFeedbackDuration.setOnPreferenceChangeListener((preference, newValue) -> {
diff --git a/app/src/main/res/xml/pref_general.xml b/app/src/main/res/xml/pref_general.xml
index e2078d2..4e676f5 100644
--- a/app/src/main/res/xml/pref_general.xml
+++ b/app/src/main/res/xml/pref_general.xml
@@ -88,7 +88,7 @@
 	        android:summary="@string/settings_haptic_feedback_summary"
 	        android:defaultValue="25"
 	        android:min="0"
-	        android:max="50"
+	        android:max="100"
 	        app:showSeekBarValue="true" />
     </PreferenceCategory>
 
diff --git a/build.gradle b/build.gradle
index 242f4a6..48f755b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.3.2'
+        classpath 'com.android.tools.build:gradle:8.4.2'
         
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 12817ef..3f37000 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Sat Jan 28 21:16:38 CET 2023
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME