1. Remove the SIM card and SD card at the same time, and then try to power on again.
2. Press and hold the power off key for 10-20 seconds to force the power off and then restart the machine.
3. When the boot screen appears after boot, you can try to enter the safe mode: when the boot screen appears after normal boot, always press the menu key at the lower left corner until you enter the safe mode (the word "safe mode" appears after boot);If you enter the security mode, try to back up your personal data (phone book, SMS, photos, etc.) to restore factory settingsmobile phoneWhether it can be used again.
If the above operation fails, it is recommended that you send the tablet to your nearest service center for inspection.
