Polaroid Snap Touch Firmware Corrupt

Hi,

I bought a Polaroid Snap Touch 1.0 from Zinc (second hand at a pawnshop). After updating the firmware, it got corrupted and all the menus are either invisable or show garbled data as the menu/option buttons (hexadecimal). I tried updating manually via the firmware zip and an sd card, but it either does the same thing or says s/w update failed.

What are my options? I have a CH341A programmer if someone can point out the flash chip. I can dissemble it as well to post picture of the device and mainboard.