Question [Q] Please help me find the right A31 Rom

I have an Allwinner A31 10.1" Quadcore tablet (Sanei N10 Ultimate / Ampe A10 Ultimate).

I've been looking everywhere for the 4.4.2 firmware update for my tablet. The only A31 Rom I found was for a 9.7" tablet.

Does it work on my 10.1" tablet?

I'm currently on 4.1, do I need any special files before I try to upgrade?

Does anyone know if there's a specific custom rom for my tablet?

I appreciate your help.