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Instructions. Yes more instructions, but these are much simpler. Make sure you’ve installed the 5.00 M33 firmware before processing otherwise you’re going to cause yourself a lot of headache.
- Extract the patch you want to install to your computer.
- Copy the Update folder to X:/PSP/GAME/ on your PSP’s memory stick.
- Run 5.00 M33-X UPDATE from under Game on your PSP’s XMB
- After all process is complete, press X. Your PSP will reboot.
- Congratulations, you’ve just installed 5.00 M33-X
Do note that X means the patch you’ve decided to download.
5.00 M33-6
Changes includes those from subsequent patches:
- Fixed a bug that made unbootable PSP without memory stick or with a bad one.
Download: 5.00 M33-6 | 5.00 M33-6 (Rapid Share)
5.00 M33-5
Changes includes those from subsequent patches:
- A setting has been added to recovery, that, when enabled it may increase memory stick reading speed. (only on the psp, not in the pc).
- By default it is disabled. If you installed 3.71 fatmsmod, do not use this setting, as its performance with 3.71 driver has not been tested. Instead, reinstall 5.00 m33-4 using dc8 and update to 5.00 m33-5
Download: 5.00 M33-5 | 5.00 M33-5 (Rapid Share)
5.00 M33-4
Changes includes those from subsequent patches:
- Speed selected for umd/iso was not properly locked in some new games that used scePower_EBD177D6 instead of scePowerSetClockFrequency to change speed.
- UMD/ISO speed settings now apply to PSN games too.
- Fixed libupdown.prx connecting to dark-alex.org instead of sony when npsignin_plugin checks for a new version and m33 update is enabled.
- Iso file descriptor was not closed in driver deletion
- Added a shutdown command to vshmenu.
Download: 5.00 M33-4 | 5.00 M33-4
5.00 M33-3
Changes includes those from subsequent patches:
- A bug was introduced in 5.00 M33-2 that made some games and homebrew not to work
- PSN version check is now automatically bypassed without need of touching any setting
Download: 5.00 M33-3 | 5.00 M33-3 | 5.00M33-3 (RapidShare) | 5.00M33-3 (MegaUpload)
5.00 M33-2
Changes includes those from subsequent patch:
- A bug was introduced in 5.00 M33-2 that made some games and homebrew not to work
- PSN version check is now automatically bypassed without need of touching any setting
Download: 5.00 M33-2 | 5.00 M33-2 (Rapidshare)
If you encounter any problems or need some help or need to clear somthing up, post a comment.
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Tagged with: 5.00 Firmware, Custom Firmware, How to install 5.00 M33
Filed Under: Playstation Portable



















WHAT U ASK chuck MY I UPDATED IT MY WAS VERSION 5.02 WHEN IT WAS IN BOX KNOW ITS 5.03
I EVEN TRAYED UR GEN IT DIDNT ALOW ME TO START THE LOADER SAYS CURAPTED WHY?????????????????????????HELP ME DUD
do i need any patches for the upgraded psp of mine or they are not nescessary for playing ps1/psx games on the psp??
hi sir,, thnx for guiding us on how to upgrade the psp,, i used to have the 3.80 m33 and when i wanted to play final fantasy 7 of ps1 on the psp it always got stuck at some point…. now its better and i am going further,, however, i sometimes get the same problem as the image stucks and to play it i have to restart the psp,,,,, is there any solution to this problem??
escuse me sir,,, ever since i uopdated the psp to 5.00 m33 i cant play the games i have,, they are the type that u put in the folder ISO,, final fantasy 7 of ps1 is working fine on the psp but the psp iso games arent,, wat can i do to make them both run normaly???
Just wanted to say thanks for this. Worked first time.