For UE4 games running on Android, you can find the log files in the following location on the Android device:
/sdcard/Android/data/com.epicgames./files/UE4Game/Logs/
Replace with the actual package name or folder name of your UE4 game on the Android device. You can access these log files using Android file manager apps or by connecting your device to a computer and browsing the file system. These logs can provide valuable information for diagnosing issues with your UE4 game on Android.