How to Upgrade to 3.71 M33-2
Just a few days ago, Dark Alex released an update for 3.71 M33 custom firmware. The update fixed a few bugs. It also disables the VSH menu when on the onscreen keyboard. This update will let you toggle the on screen keyboard again. For the PSP Slim, a functionality to let the charge of battery when connecting a usb cable has been added. Let’s get it on with the guide.
Requirements:
- Fat or Slim PSP with 3.71 M33 custom firmware. If you don’t have a 3.71 M33 yet, here’s a guide for installing 3.71 M33.
- USB Cable
- Computer
- Make sure you have the kernel of GAME folder configured to 3.71. Shutdown your PSP then restart while pressing R then the recovery menu will appear. Go to Configuration>Game Folder Homebrew. Make it 3.71.
Instructions:
- Download the update here.
- Unzip the file anywhere on your computer. Connect your PSP to your computer then copy the contents of the UPDATE folder to ms0:/PSP/GAME/UPDATE
- Go to XMB menu and then go to GAME>Memory Stick then run the Update
- Wait for 5 seconds. Voila! You now have a 3.71 M33-2 PSP
After you have this installed, head on to the next guide on how to install update 3 for 3.71 M33. Let’s give thanks to Dark Alex for his hard work.
UPDATE: You can now skip this guide and go directly to the 3.71 M33-4 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.
May 4th, 2008 at 11:10 pm
The download link doesn’t work ..
February 25th, 2008 at 5:13 am
@ares: CUSTOM fw won’t work on ORIG fw. MOD your unit to CUSTOM fw first before installing these updates.
February 24th, 2008 at 8:21 pm
thats the same problem im having…i have the orig sony 3.71.. ive downloaded 3.71 m33-2 installed it and it wont work..can u plz help?
February 17th, 2008 at 12:13 am
i just wanna ask… what if i wanted to update my firmware from 3.71 M33-2 to 3.90…. do i have to have the original files in my flash0.. will the updating needs the original files of flash0? coz’ i kinda deleted some files there like gameboot.pmf, system_plugin.rco etc, although my psp is still running fine… i was juzt wonderin’ sorry really new to this?_?
February 1st, 2008 at 3:27 pm
i have nitepr k and i was wondering that if i upgrade to 3.71 it wont work, so could you tell???, what about 3.80?
January 17th, 2008 at 12:51 am
i have 3.71 what can i do to play games on psp withouth umd? can i upgrade him or downgrade him and on what version?
December 13th, 2007 at 6:50 pm
@RIGZ: You are welcome.
@Tanu: No you can’t. Sorry.
December 13th, 2007 at 5:21 pm
Wow! Success! now I’m in 3.71 M33-2, Thanks for your guidelines.. Thank you Dude
December 12th, 2007 at 3:53 pm
yeh..umm
can u do this if you have the official sony firmware 3.71
so what im asking is can u upgrade from official firmware 3.71 to 3.71 M33-2
cos if u can plzzzzzzz tell me