This happens when a Bluetooth keyboard disconnects. Keep the app locked in your recent apps tray, or use a system automation tool to force-launch it on hardware detection.
Turn off Android battery optimization for the application. Android background resource management aggressive kills background input drivers. external keyboard helper apk download
Connect your physical hardware keyboard via Bluetooth or USB OTG. This happens when a Bluetooth keyboard disconnects
To help you get your hardware keyboard running perfectly, tell me: What of physical keyboard are you using? What Android version is your device currently running? What Android version is your device currently running
Go to Choose keyboard layout and select your precise hardware language configuration to fix broken key mappings instantly. Advanced Customization: Remapping Keys
Installing the APK is only the first step. You must manually activate it within the Android system input settings.