Samsung · Galaxy Series (Mobile)
After replacing the screen on a Flip model, the main screen may appear off while the cover screen is on. This is normal and not a hardware failure before calibration.
Click steps to track your progress.
Connect the device to a USB power adapter or computer using a USB cable.
Press and hold the Side button, then press the Volume Up button once and the Volume Down button twice.
The main screen should turn on, allowing you to proceed with calibration.