Booting your smartphone in safe mode is also another option to find out if the screen works or not. Safe mode is like a diagnostic tool to help identify the problems on your device. Step 1: Turn off your device then power on. Step 2: When the Samsung logo appears by itself, press and hold the Volume down key. Step 3: The device will switch on in Safe mode. Safe mode will be displayed on the bottom left of the screen. If the screen works in safe mode, an app is most likely causing your issue. Remove recently downloaded apps one by one until the problem is fixed. If the problem persists when your device is running in Safe mode, the problem might not be related to an app. To exit safe mode, restart your device.
