Finally found that b*tch in my PS2 cemetery. If you have this dump of mine in your database/collection, SCPH-39004, wrong serial number 5989817, please discard it : https://pastebin.com/raw/L55mu86v I found the machine and restored a backup of its original mechacon nvram : https://pastebin.com/raw/CGJm3ZMR Now you can see its real chassis ID, model ID, serial and sh*t... It's a common system, nothing special nor rare. In fact, it was my main console for hacking DNAS stuff, and it got banned several times by SONY. So I made a HW ID randomizer in order to circumvent the console bans, a coldboot nvram reprogrammer, memcard based obviously. And at the time I dumped the stuff with ps2ident for SP193 (back in 2013), the mechacon nvram contained false IDs, I'm sorry. Mistery solved. The rest (boot ROM hash and all) is correct. The system is not modchipped.