Keeps rebooting automatically

The device system may have crashed for some unknown reason, please try the following:

1. long press the power button for 10 seconds for software recovery.

2. If it is a tablet, you can recover it through the reset button, the location of the reset button is usually next to the power button or a small hole in the same location on the opposite side bezel, poke it with a card removal pin.

3.If all the above operations can not be recovered, download the device firmware and brush tool, and upgrade the firmware through the computer wired connection.