1. Long press the right power button for 8-10 seconds to boot
2. Restart the phone and press the menu button in the lower left corner to enter the phone security mode, and then check if it can be turned on normally. If you can boot, please delete the recently installed third-party software, or restore the phone to factory settings after backing up important data.
3. If the problem persists, it is recommended that you carry the mobile phone three-pack certificate and send the mobile phone to the nearest Samsung service center for testing.