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.
January 9th, 2008 at 8:56 pm
@dshelpplz: If you really wanna go to 3.71 M33 then you should press X to fix your ID storage keys. But that’s up to you. I have seen that too many times when I’m installing custom firmwares and I must say I’m 100% successful. But really, it’s your choice dude. Do it at your own risk.
January 9th, 2008 at 8:45 pm
hello…
ı foollowe dyour guide and now my psp is 3.52 m33.4.. for the next step ı had tried to upgrade it to 3.71… when ı starded the upgrade program ıt says…
“some of your idstorage keys have not the correct values, probably due to a downgrader. In order to continue, press X to restore the correct values, press R to exit.”
ı press R and exit… ı read the forum and see two problems having this error… one was succesful by pressing x the other bricked psp… what is the reason of that error… what should ı do…
January 8th, 2008 at 11:31 am
When I try to run the update from my PSP, it verifies the 3.71 first, and then in the next line it says something like “error idsgeneration” and then restarts.
What gives?
January 5th, 2008 at 6:22 pm
I have put M33 3.71 on my PSP but it saying no update required. My PSP is a 3.80.
Any Ideas?
January 5th, 2008 at 7:25 am
Yeah sorry about my last post but i just upgraded to 3.71m33 and it was working fine then it came up with a data corrupeted message in japanese but everything is working fine thoe
January 5th, 2008 at 6:05 am
does ur pp have to be in 3.52 mode in revoery to do this and also do you have to format your memory stick before you put the update floder in it
January 4th, 2008 at 9:57 am
hey ex-pizzaboy
did you have custom firmware on it before you bricked it????
if you did your in luck as i can supply all software needed to unbrick and easy install up to 3.52 m33-2-3-4
ron
January 3rd, 2008 at 9:24 am
thank you so much! This guide is a great help saved me a lot! PS. this guide is much clearer and easier to understand than any guide found on the net so far. THANKS!!!!
January 2nd, 2008 at 11:20 am
thats called a brick
December 31st, 2007 at 3:39 pm
bricked it.
i installed the update from m33 3.52-4, claimed it needed to fix something from a previous downgrade, fixed it, freaked out about legit installer, cancelled, checked firmware to make sure it was right, tried installing again, told me i needed 78% battery, tried left and triangle override, did nothing. turned it off. tried to turn it on again, now nothing. green light, no screen. plz help.