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.
April 17th, 2008 at 3:02 pm
i got it, restart pressing R then select the kernel folder to 3.52 instead of 1.50 and then run the updater
good luck
April 17th, 2008 at 2:57 pm
i get the same error!!
April 12th, 2008 at 9:39 am
@Victor Cunas
Read the directions, everything’s already there.
April 12th, 2008 at 8:53 am
when we do it do we put the update into game or game150, cuz arent we supposed to use the game150 instead if game?
April 5th, 2008 at 3:10 pm
the epitome of a perfect tut
installed 3.5 and 3.7 with no problems. keep up the great work!
April 2nd, 2008 at 12:40 am
@Raymond Edwards: Your PSP may be semi-bricked. Try to access the recovery menu - Turn your PSP off, slide the power button up for 15 secs. When the green light is off wait for 5 secs and then Press the R button and while pressing it, turn on your PSP. You’ll be taken to the recovery menu. From there you can install a 1.50 firmware into your PSP.
April 1st, 2008 at 11:19 pm
Hi
Everything seemed to be going well, followed the guide to upgrade from 3.30 oe-a to 3.52 m33 then to 3.52 m33-4 so i thought we would go to 3.71 m33, reort said some files not correct and press x to correct it so i pressed x it said successful then i got a error DRNFFFFFFB0 or O, now i have just a power light and a black screen.
PLEASE HELP
Thanks
Raymond
March 28th, 2008 at 10:55 am
my PSP has firmware 3.71. so it it im possible to upgrade it to 3.71 MM?
March 24th, 2008 at 12:17 pm
@james: You need to set your Kernel to 3.52.
March 24th, 2008 at 9:25 am
I get a message saying that i requires 3.52 m33-3.
I have 3.52 m33-4 installed, so i don’t know why I m getting this message.