ok, after searching and lurking for a week on various forums trying to sort all this stuff out I decided to try and downgrade my 2.71, non -082 mb PSP. I followed the tutorial found here http://www.psp-hacks.com/forums/about17935.html allong with this program http://www.psp-hacks.com/file/753, the dark alex downdater. Fresh format on a sony 32mb ms, default settings, had to load the ms on a card reader because it kept stalling via the PSP. The particulat tutorial I followed didn't mention anything about files from another 1.5 machine, so I didn't do that. Started up and browsed to photos and it launched the downdater, got my red screen for a few minutes then shut down. When I restarted it I got the power led and nothing else. Tried restarting in recovery mode by holding down 'R' durring boot, nothing. Tried holding 'home', nothing. Something I'm missing? any advice, or am I SOL? Thanks!