Where to get replacement parts?

Hello,
After my less than two month of use, the mainboard of my chuwi hi12 tablet (Z350 Single boot) died. Its not possible to sent it to China for repair due to the lithium ion battery (=dangerous good). The local technican however needs a data sheet and replacement parts for the chuwi hi12 in oder to fix the mainboard problem.

Where can i get the data sheet as well as replacement parts for this tablet?

I am extremely frustrated right know as it seems to be very difficult to get help from offical sites.

With kind regards,

Bonic

Write to aftersale@chuwi.com