The mobile phone light suddenly went off. What is the reason and what should I do?

The reason why the mobile phone status indicator does not light up:

1, the data cable is not plugged in properly.

2. It may be caused by hardware failure such as mobile phone screen.

3. The system crashed.

4. There is something wrong with the mobile phone system, which cannot be recognized. Solution: 1 Check whether the data cable is plugged in securely. Try to plug the data cable firmly, the new one will be a little tight, try to plug it deep. 2. It may be a system card. Restarting the phone will solve it. 3. Sanqing data. Enter the recovery state. How to enter the recovery: In the power-off state, press and hold the "Volume Increase Key" first, then press and hold the "Power-off Key", and let go to enter the recovery after the boot screen appears. If you can enter the recovery, please switch the system and back up the recovered data. If you can't succeed, you need to clear all data (address book, SMS, mobile phone application, etc. Will disappear). 4. There is something wrong with the mobile phone system, which cannot be recognized. Whether you can enter Fastboot. Method to enter Fastboot: Press and hold down the "Volume Reduction Key" and then the "Shutdown Key" when the power-on screen appears, and then let go to enter Fastboot. Please connect your mobile phone to your computer and brush a complete system package with Miflash.

5, mobile phone hardware problems. At this time, you can only take your mobile phone to the maintenance office for repair.