Install 3.71 M33 on Your PSP in 4 Easy Steps
This post may be a bit late but I know a lot of you PSP owners out there are looking for installation guide for the 3.71 M33. For a bit of information, 3.71 M33 was created by Dark Alex. In other words, M33 is Dark Alex. Now on to the instructional guide!
Requirements
- You must have 3.52 M33-4 installed on your PSP. If you don’t have one yet, lucky for you I wrote a guide on installing 3.52 M33-4 too.
- A Slim (PSP2000) or Fat PSP (The older version) with 78% or more battery.
- PSP AC adaptor
- A USB Cable
- A Computer
- Ability to understand and follow instructions
- If you have the fat PSP, configure GAME folder to run on 3.52. How? Shutdown your PSP. Then power on your PSP while holding down your R button. This will take you to the recovery menu. Go to Configuration > Game folder homebrew and check if 3.52 is enabled. Press X or circle if not. Exit the recovery menu.
That’s it. if you have all these then you are ready to go!
Now here are the 4 very easy steps:
- Download the 3.71 M33 installer pack I’ve made just for you. Unzip the file to anywhere on your computer.
- Connect your PSP to your computer via USB and copy the UPDATE folder to ms0:/PSP/GAME
- Go to your XMB menu and run the M33 update program. The screen will go black and this is normal. Follow the instructions. Be sure you have your PSP plugged-in to the AC adaptor. Screen will change to the Sony Update screen. Accept and update.
- This last instruction is VERY important. After the update is finished, the updater will ask you to reboot by pressing X or O. Do so, press X or O and the PSP will restart. Have fun on your new upgraded PSP!
After successfully upgrading your PSP to 3.71 M33, you can install the 3.71 M33-2 update by following the guide I made here. Special credits go to Dark Alex. You can send him donations on his website via PayPal.
UPDATE: I wrote a guide on how to add the 1.50 Kernel Add-on for 3.71 M33. Please check it out if you need it.
December 12th, 2007 at 4:00 pm
will it get bricked if you try it with a 3.71 offciial firmware
cos please tell me
please
December 8th, 2007 at 9:38 pm
PLEASE TEACH ME HOW TO DOWNGRATE MY PSP VERSION 3.73 THANKS I’LL WAIT FOR REPLY ^_^
December 8th, 2007 at 3:52 am
@jkillah1: That question was first asked by you. Swapping memory cards won’t affect the firmware. once you had the firmware installed, it stays on the device and not on the memory stick.
December 8th, 2007 at 2:52 am
This is probably a often asked / dumb question, but if you swap out your memory card with another one will it mess anything up, or get rid of 3.71 M33?
December 6th, 2007 at 7:27 pm
i already solved it sorry! i had in recovery mode 1.50 kernal selected instead of 3.52 sorry
December 6th, 2007 at 7:14 pm
My psp says its at 3.52 m33-4 but when i try to install 3.71 it says it needs 3.52 m33-3 or higher does anyone has a solution
December 6th, 2007 at 7:51 am
when i try running the recovery file it says:
“verifying 371.PBP… OK”
“verifying umodule.prx…OK”
“Press X to start the update, R to exit”
(i pressed x)
“Starting sce updater, Wait…”
December 6th, 2007 at 5:26 am
i was trying to figure out how to fix the problem i had with the game menu, it wouldn’t allow me to access the game i downloaded. and i can access the m33 recovery menu.
December 6th, 2007 at 5:26 am
i was trying to figure out how to fix the problem i had with the game menu, it wouldnt allow me to access the game i downloaded. and i can access the m33 recovery menu.
December 5th, 2007 at 10:32 am
@dark shogun: hey what did you last do before you bricked your PSP? If you can’t access the recovery menu then you need pandora’s battery.