1, this is a normal phenomenon, because in the process of cleaning data, when the mobile phone encounters a big data group, the cleaning progress will be slow or even stuck. At this time, the user only needs to wait patiently for the mobile phone to automatically reset to 100%. It usually takes only a few minutes, not more than half an hour.

2. If you don't move for more than half an hour and there is still no response, it may be that your mobile phone crashed. You need to press and hold the power button and the volume+button to restart the phone forcibly, and then perform the operation of restoring the factory settings again after the restart. If necessary, you can enter recovery mode to clear the data. Methods: Press and hold the power button and the volume+button to enter the recovery mode. After entering, select Simplified Chinese-Clear Data-Clear All Data. Restart the phone after clearing, and the phone will return to the factory setting state.