Long Story short I have the rom for u9 on the board, but it was uv wiped. Sticker says "Pinball Boot v1.0". I've found a SAM 3.1 version online but I can't find the code for this apparent v1.0 edition.
Been trying to get through to stern forever but nobody ever picks up.
Thanks!

I tried 3.1, burned & verified, doesn't seem to be compatible with this board? I'm unable to get into update mode. DMD is blank.

I should note that the 3.1 version I tried came from a pinmame site. I assume it is the same code but idk. I can't find an official stern 3.1 version either. I'm finding it strange that this isn't readily available on their site?

The sticker did say v1.0 on met. 2013. Makes me wonder why it wasn't 3.1. Or maybe it is different code?

Oh & yes I just read my chip directly, it does say 03F64CF6 checksum

I'm back up & running! Thanks a bunch. Yeah the 3.1 code totally didn't work at all. This definitely does though.