Will I be able to update to 2.0 and then down to 1.5 again to get a clean firmware? (whats the difference between clean and unclean 1.5 anyway?)
Will I be able to upgrade to 3.0 when ps1 emulator comes out?
How do you intend to manually downgrade hundreds of psp if it takes 45 minutes to do each one?
thanks in advance for the info