1. Turn the phone off by holding down the Power button, selecting Power off and then Ok.
2. Do nothing for ten seconds.
3. Press the Power button again to turn the phone back on.
1. Make sure that the display is on.
2. Now press the Windows button.
3. Select Settings.
4. Tap the Change PC settings option; select Update and recovery.
5. Now select Recovery.
6. Select Refresh your PC without affecting your files.
7. Begin the soft reset by tapping Next.
8. Wait for half an hour until the process completes.