Further, we cannot guarantee it works, which is why it's listed as parts, despite being very confident it will work.  That said, you need to accept this risk with this purchase that it might not.

There are some numbers on the back which I am not sure which is the serial number 

Here is the website that I think aligns with the model::  https://ruggedpcreview.com/3_slates_winmate_m970d.html