I just keep talking to myself, but let's just keep updating.

So, I ordered and received a UART adapter. Installed that today and using PS5 Wee tools I was able to connect. Cleared the errorlog and tried again, still 3 beeps.
Took off the NOR ic again, and wrote back the original dump to it again, so I was back at square one. Placed it back and used UART again to read the errorlogs, and there were some errors, so I cleared those again. At this point I have the exact dump that belongs to this PS5, minus the errorlogs.

And still.. 3 beeps.

I think I...

Or if someone (@cobbes maybe ? ) can tell me how to clear the error logs from the original bin ? I have ordered a UART adapter, but if I understand correctly, the errorlogs "live" in the nor anyway, so it's just a matter of FFFFFFFF-ing the relevant address range, I guess ?

edit : Tried to do it myself by copying the 001c5000-001c58f0 range from the cleared file that Cobbes posted a few posts up into my original dump. Still the same three beeps. I don't know what to try next :/ I've attached my original with the cleared block....

I'm at a loss here. I have a PS5, EDM-020, CFI-1116A, disc version. It has the infamous 3 beeps when I connect a powercord to it and does absolutely nothing after that.

I took off the bios ic, read it, dumped it and checked it with the C0der amazing tool (which btw tells you your file is invalid if it ends with .BIN instead of .bin. Took me some head scratches why it didn't recognize my dump at first).
Looked fine, no signs of corruption tbh.

Anyway, I used the dump someone else here posted (granted, he did say it was "untested") and overwrote the values...