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How to change umd iso mode to m33 driver

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Then HOLD the R Trigger and turn the PSP on. U MUST have the GAME folder in the PSP folder for any ISO's/CSO's to work.Įnter Recovery Mode by holding the Power off the PSP for about 5 seconds. These settings are for 3.52M33 - 3.90M33-3 - 3.72HX and 3.93CF Custom Firmwares. Or if they Freez, make sure U use the following settings in Recovery Mode.