I have already tell You how to do it in case of having AID. Yet is still open to discuss how user ownership works in case when You don't have AID (as everyone which never merged user account with specific SEN account). And unfortunately this is Your case. ^^ IMO there is no validation here besides user number and Open PSID (not IDPS, and not AID). But this is only my free thoughts, never checked. I'm sorry but I forgot about user incremential number as @haxxxen mentioned. Probably this is the reason why You have so high user numbers and console don't accept lower. It is possible to reset... somewhere. BTW: a quick guide about some names which I using: AID or NPAID: it is a unique per SEN user ID in Sony network across all their platforms IDPS: it is a unique console ID per every mother board OpenPSID: like above (?) User Number: user number, must match to user folder name in $home Don't bother to resign data to new account. It is pain in the ass, believe me. Instead try figure out how to change user ID in settings/paths to match to Your data. I'm attached below some tools but missing Flatz Tools (but probably it's part of Bruteforce SaveData with filled needed keys). But still, I do not recommend to resigning.