If it is the original NOR dump you send, than you can write it direct back and test. If not, you can write it back for testing. If it works I would change the console infos Mobo S/N, S/N, Wifi MAC,......
@Vincovitch: I would connect the PS5 to a pc/laptop via a CH314a programmer and start a UART software like ps5 we tools and clear the error logs 'errlog clear' and see if this solve the issue of three beeps.
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