I am helping my friend which have PSP device and has a firmware/mod upgrade X.XX m44 .. I don't know exactly the version is. But it could be 4.xx m44.
Anyway ... he activated the password on the BIOS which everytime the device restart, it will prompt the password. I believe this is not the login that originally PSP has but it's from the upgraded firmware.
Somehow the password get reset without knowing it. My question how do I reset this? Worst come worst ... the data can be blown away if it's required but I don't know how to?