Start the update, it looks just like the original Sony update, but it's cfw. Dark_Ale X has released custom firmware 5.00 M33-6.
Be sure to keep yourself up to date on everything related to the Sony PSP by checking the PSP-Hacks page regularly.
If you have OE/M33 firmware lower than 3.52 M33 please start from Section A.
If you have OE/M33 firmware equal or greater than 3.52 M33 and lower than 3.52 M33-4, please start from Section B.
Changes in 5.00 M33-6: - Fixed a bug that made unbootable psp without memory stick or with a bad one.
Changes in 5.00 M33-5 ---------- This update is a try to fix memory stick low speed since 3.80.
Instructions: Copy UPDATE folder /PSP/GAME/ and run.If you come from a version prior to 5.00 M33, put sony update as 500.PBP in same folder, or let the program download it for you using a wifi connection. If you installed 3.71 fatmsmod, do not use this setting, as its perfomance with 3.71 driver has not been tested.Changes: - A setting has been added to recovery, that, when enabled it may increase memory stick reading speed. Instead, reinstall 5.00 M33-4 using dc8 and update to 5.00 M33-5 The included file fat_contains a comparison of perfomance between the 5.00 fat driver, the 3.71 one, and the 5.00 one with the speed up hack during the read of an iso.The test was done on the game Valkyrie Profile in CSO format in March33 mode.Other games, modes and applications different than ISO reading showed similar results.