Chuwi Hi10 Pro keyboard problem

My tablet chuwi hi10 pro vs win 10 home 1607 and HQ64G42161206764 keyboard problem, when my tablet run remix OS, It works normally.
Please watch my video and help me.

If you take off the keyboard, does the problem still exist?

When i take off keyboard, no problem.

This problem may be due to hardware failure or TF card failure.You can try to change the TF card first.

When I pressed the ESC button, it returned to normal. so I think due to the driver.
But when i try install driver, it problem back.

Please describe the specific problem with your device to