3.51 M33 custom firmware installation guide

[Got rice?]

Guide for installing 3.51 M33 custom firmware on your PSP(Easy upgrader and 3.51 M33 download links provided by Lommer)
Disclaimer: This firmware flashes your PSP. Whenever your PSP is flashed there is always a chance of bricking your PSP. PSPMOD, me, or the people that made this firmware cannot be held responsible if your PSP bricks.

Requirements:

-PSP with custom or 1.50 firmware

-m33 firmware
-1.50 eboot
-3.51 eboot
-Easy upgrader (download and skip to step 8)

Updates

- M33-7 update (only install after successfully completing the installation of the 3.51 M33 custom firmware)

Instructions for updating

1) Download the updater.

2) Unzip and put the M33_7 folder in <pspdrive>:/PSP/GAME150
Note: the M33_7 folder is located within the M33-7 folder which is the main folder shown after being extracted.

3) Run the updater from the psp. (The update should take a couple of seconds)
Note: The updates are cumulative so the latest one will include the fixes from previous updates.

Instructions

IMPORTANT: If your PSP has firmware version 1.5, download the 3.51 custom firmware and copy the folders kxploitpatcher and kxploitpatcher% found in the folder 1.5 only to <pspdrive>:/PSP/GAME and run that patcher first.

Part 1 (setting up the files needed)

1) Download the custom firmware.

2) Download the 1.50 and 3.51 eboots.

3) Rename the 1.50 eboot to 150.PBP and the 3.51 eboot to 351.PBP

4) Place both of the renamed eboots to the M33CREATOR folder.

5) Place the M33CREATOR folder into <pspdrive>:/PSP/GAME150
(for PSP's with firmware 1.5 place the M33CREATOR folder in <pspdrive>:/PSP/GAME)

Part 2 (creating the updater)

6) Run the 3.51 M33 creator (It might take some longer than others to create the updater depending o the quality of your memory stick)



7) Once finished a new icon will appear on the PSP called 3.51 M33UPDATE


Part 3 (running the updater)

8) Run M33UPDATE

9) The updater will warn you of a possible brick. If you want to continue press X if not press R to return to the XMB.


10) When finished press X to shut off. Restart manually

11) you should now have custom firmware 3.51 M33. Enjoy.



Back up of Flash0 and Flash1 for 3.51 M33(Back ups provided by blizzard182)

For anyone not satisfies with 3.51 M33 here is a link to recover back to 1.5 then upgrade to any other custom firmware of ur choice.
Recovery
(added thanks to vocoder)

List of ISO's that work with the new M33 NO-UMD enabled. (The latest update needs to be applied first)
-List of ISO's (ISO-s that work without UMD on 3.51m33 CFW)

For 1.5 users. Access the recovery menu by holding down the R shoulder button when the PSP is being turned on. The PSP has to be completely shut off and not in sleep mode for the recovery menu to be accessed.

[Lord Rahl]

Cool, Thanks for the info.

[rx7]

i'm running 3.40oe, should i start from part 1 or part 2? does the easy upgrader down grade to 1.50 first?

[HoLiK47]

Same here had to edit you beat me to it. what games are in 3.51? Just curious thanks

[Got rice?]

just dowload the easy upgrader and put it in <pspdrive>:/PSP/GAME150 then run the M33UPDATER. I upgraded from 3.40 OE-A also no problems

[Got rice?]

Holik47 u mean wat UMD's require 3.51 or isos and psx eboots?

[mypspmyprecious]

is this upgrade for TA-082 psp's also ?

[Got rice?]

yea it will work just follow the instructions

[mypspmyprecious]

sorry for not completing my question earlier - i have a TA-082 with 3.40OE-A, so should i start with the easy upgrader in the GAME150 folder and I am good to go ??

[Got rice?]

yea just download the easy upgrader and put in the GAME150 folder and then run it on your PSP.

[Troblin]

I have 3.03 OE-C still. Can i run the upgrader directly from this custom firmware? I know you gave the green light for 3.40 OE-A, but wanted to double check w/ my firmware. Thanks.

[Got rice?]

^ You can upgrade straight from 3.03 OE-C

[xSHADOWx]

Wait I havent really found out much about this CFW would it let me run like the newer demos(full auto- kicks ass lol) and run like pspwxp along with all the 1.5 homebrew? If so than this is the ultimate fw out there.

[Got rice?]

I haven't tested any demos but my isos still work, emulators (Daedalus, gpSP and NesterJ work), and ipsp all work.

[Gameunreal]

cool. looks very cool.