My sons psp slim has a 5.02 downloaded from the internet. the problem is that it cant read hid memory stick. previously he has a 3.9 m33-3. how can i get it back to that firmware?
Someone will have to run the flash program to get you back to M33. Pandora battery and Magic stick with M33 flash on it. Most homebrew and programs will not run on any M33 version above 3.9. New UMD games from sony will have the latest firmware and the children will usually run the firmware upgrade to play the game. It will allow the new UMD to play, but the Sony Firmware will write over the Custom M33 firmware and you will not be able to run the games on your Memory stick.
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i have 4.01 version 2 firmware and i updated to 5.02 then my PSP cannot read already the games on memory stick
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