Using my 3.90 M33-2 psp, i created pandora battery and memory stick from the perfect pandora guide to downgrade my friends 3.30 psp. It wont power on unless i use my 1 gb magic stick and I was wondering if it has to do with time machine. I would like to be able to use different memory sticks in the future and I was wondering if it was possible.
Edit: his psp is fat type just upgraded to 3.30. It says it has 3.90 M33-3 now