1. It is recommended that you press the power button of the mobile phone for 8-10 seconds to observe whether the machine can be turned on normally.
2. It is recommended to remove the battery, expansion card, and SIM card, clean the battery contact, and then reinsert the battery into the phone, and click the power button again to turn it on.
3. Check whether some third-party software is installed. If this is the case, you are advised to enter the safe mode and uninstall some third-party software.
1) Turn off the phone first and turn it on again. When the phone shows the screen, press and hold the menu key quickly until the word \"Safe mode\" is displayed at the bottom left of the phone and then release the hand.
2) After entering the safe mode, go to the Task Manager option and uninstall some of the installed third-party software.