I got it to work and mine is NOT activated, but i can use any game psp that is and as long as i installed it IDU mode it works but go to launch game before tiahen states to re-download, If launch after taihen it goes to load psp splash screen and crashes.
as to confirm to the demo work around...
btw i feel this a good time to remind you guys that sea of thieves was made by rare, who also made DKC1-3 and DK64, alongside banjo kazooie and conker's bad fur day