I have 2 Tablet :

n.1  is a Chuwi Hi10 CW1515. It work Fine.

the second one is Chuwi Hi10 Air CW1529 I had problems with bios . To fix it  I replaced Motherboard damaging lcd display flat cable. To much expensive fixing it. To replace flat cable I have to buy also lcd display because Chuwi service doesn’t sale only flat cable.