Tekken Tag / Namco System 12, boot loop watchdog

Greetings mate, I have the same problem, has anyone come up with an advance or a solution?

I'd be very gratefull
PS: I have this same error on a Tekken Tag
 
This solved my issue thanks!!!!
Helloo!
it worked for me as well, thanks!

I reflowed the pins of pretty much all the chips on the daughterboard with no luck, then I read here about pressing the 2 boards together..
So I put a generous amount of IPA on both connectors, reseated the board and pressed them together.. and it booted right away.
And it continued booting after releasing them, not sure for how long it's going to continue booting
but at least I know where to look if that happens again.

Thank you all ;)
 
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