I believe NOOBs have a hard time with the README files located in every custom firmware package, because they are written for people who have an understanding of homebrew. This guide will go in to detail on how to install 3.40oe-4.01m33-2 on PSPs currently running 1.50 (fat).
If your fat PSP is NOT running
1.50 scroll to the bottom of this page for info.
To use the downloaded files, you will need the WINRAR program installed on your computer. If you do not have WINRAR, scroll to the bottom of this page for more info.
NO ONE BUT YOURSELF CAN BE BLAMED IF YOU DAMAGE YOUR PSP. DO NOT BLAME ME, DO NOT BLAME THE CUSTOM FIRMWARE DEVELOPERS, DO NOT BLAME THE LINKED SITES, DO NOT BLAME PSPMOD.COM NEVER SHUT YOUR PSP OFF DURING AN UPDATE. If you must leave during the custom firmware installation, when you return, click the brightness key on the psp. This will then activate the screen so you can tell if it has finished or is still working.
With any firmware modification, make sure you have at least a 75% battery life, or are using the AC charger.
1.50 to 3.40oea IF YOU PLAN ON UPDATING PAST 3.40oea SKIP TO 1.50-3.52m33
Download these files:
http://www.psp-hacks.com/download.php?id=1130
^^Official 3.40 update
http://www.psp-hacks.com/download.php?id=4
^^Official 1.50 update
http://www.psp-hacks.com/download.php?id=1132
^^3.40OE-a Custom Firmware
(I suggest you make a new folder for each download, so you dont mix things up.)
#1. Once you have downloaded and extracted the files, go to the
3.40_oea folder, and inside, you will see: oeupdmaker and oeupdmaker%, highlight them by left clicking the mouse on the blank part of the page, and while holding down the button, drag it over the two folders. Once they are highlighted right click the highlighted files and select COPY.
#2. Start your USB connection, enter the removable disk, click PSP, then GAME. Right click a blank part of the screen and select PASTE.
(If you dont know how to start the USB connection, scroll to the bottom for more info)
#3. Next, go to the
3.40 Official Update Folder
. Inside will be a file called "EBOOT.PBP". Right click the file and rename it 340.PBP. Once it has been renamed, right click it and select COPY.
Go back to the USB connection, and to the
oeupdmaker folder. Open it, and right click on a blank spot and select PASTE. DO NOT PUT THIS IN THE FILE WITH THE % SIGN.
#4. Now go to the
1.50 Official Update Folder. Right click the "EBOOT.PBP" and rename it to 150.PBP. Once it has been renamed, right click it and select COPY. Go back to the USB connection, and to the
oeupdmaker folder. Open it, and right click on a blank spot and select PASTE. DO NOT PUT THIS IN THE FILE WITH THE % SIGN.
#5. Exit the USB connection. On the PSP go to the GAME menu, click MEMORY STICK, and then click the "UPDATE MAKER". Once this has created a file, it will exit back to the menu.
#6. Start the USB connection. Go back to the
3.40oea folder, and inside you will see two files called:
340oeflasher and 340oeflasher%. Highlight both files, right click and select COPY.
#7. On your computer, navigate back to the USB connection. Click PSP then GAME. Right click a blank part of the page and select PASTE. You will also see a new file called DATA.DXAR. If you left click it and hold the button down, you can drag it into the
340oeflasher folder. DO NOT PUT THIS INTO THE FILE WITH THE % SIGN.
#8. Exit the USB connection, and on the PSP go to the GAME menu. Click MEMORY STICK. Now click on the
340oeflasher file. It will then update the firmware.
#9. Congradulations, you are now running 3.40OE-A by Dark Alex.
3.40oea to 3.52m33
Download these files:
http://exophase.com/files/psp/3.52M33.zip
^^3.52m33
http://www.psp-hacks.com/download.php?id=4
^^Official 1.50 update
http://exophase.com/files/psp/352.PBP
^^3.52 Official Firmware Update
(I suggest you make a new folder for each download, so you dont mix things up.)
#1. Once you have downloaded and extracted the files, go to the
M33Creator folder, Right click it, and select COPY.
#2. Start your USB connection, enter the removable disk, click PSP, then GAME. Right click a blank part of the screen and select PASTE.
(If you dont know how to start the USB connection, scroll to the bottom for more info)
#3. Next, go to the
3.52 Official Update Folder
. Inside will be a file called "EBOOT.PBP". Right click the file and rename it 352.PBP. Once it has been renamed, right click it and select COPY.
Go back to the USB connection, and to the
M33Creator folder. Open it, and right click on a blank spot and select PASTE.
#4. Now go to the
1.50 Official Update Folder. Right click the "EBOOT.PBP" and rename it to 150.PBP. Once it has been renamed, right click it and select COPY. Go back to the USB connection, and to the
M33CREATOR folder. Open it, and right click on a blank spot and select PASTE.
#5. Exit the USB connection. On the PSP go to the GAME menu, click MEMORY STICK, and then click the "3.52 M33 CREATOR".
Agree to all terms and the update will begin.
#6. Congratulations, you are now running 3.53M33 by Team NOOBZ.
1.50 to 3.52m33
Download these files:
http://www.psp-hacks.com/download.php?id=1209
^^Official 3.52 Update
File Details-PSP-Firmware-1.50-File-(EBOOT)-North-America-PSP -
^^Official 1.50 Update
http://www.psp-hacks.com/download.php?id=1210
^^3.52M33 Custom Firmware
THE 3.52M33-4 UPDATE IS NOT NECESSARY, HOWEVER IT IS REQUIRED IF YOU PLAN ON INSTALLING 3.71M33 BEFORE YOU INSTALL THE UPDATE, CLEAR THE CACHE AND COOKIES ON BOTH YOUR PSP AND PC. Scroll to the bottom of the page for more detail. http://www.psp-hacks.com/download.php?id=1231
^^3.52m33-4 UPDATE ONLY
(I suggest you make a new folder for each download, so you dont mix things up.)
#1. Once you have downloaded and extracted the files, go to the
3.52m33 folder. Inside you will see another folder called
1.50 ONLY. open it and you will see two folders: kxploitpatcher and kxploitpatcher%. Left click a blank spot on the page, and while holding the button, drag it over both files so they are highlighted. Next, right click the highlighted files and select COPY.
#2. Start the USB connection, navigate to the REMOVABLE DISK, click PSP, then click GAME. Right click on a blank spot in the screen and select PASTE.
#3. Exit the USB connection, and go to the GAME menu. Click MEMORY STICK, then click the Kxploit Permanent Patcher to start.
#4. Once it has finished, it will tell you to press X to shut down your psp, press X.
#5. Go back to the
3.52m33 folder. Open it and now go to the M33 CREATOR folder, right click the folder and select COPY.
#6. Start the USB connection, navigate into the removable disk menu, click PSP then GAME. Right click on a blank spot on the screen and select PASTE.
#7. Go to the
3.52 Official Update folder and open it.
Right click the EBOOT.PBP and rename it to 352.pbp. Once it has been renamed, right click it and select COPY.
#8. Navigate back to the M33 creator file you pasted in your GAME folder, and open it. Right click a blank spot on the screen and select PASTE.
#9. Next, go to the
1.50 Official Update folder and open it. Right click on the EBOOT.PBP and rename it to 150.PBP. Once it has been renamed, right click it, and select COPY.
#10. Navigate back to the M33 Creator file you pasted in your GAME folder and open it. Right click a blank spot on the screen and select PASTE.
#11. Exit the USB connection.
#12. On your PSP, go to the GAME menu, click MEMORY STICK and select 3.52M33 CREATOR.
#13. Once you have run the creator, you need to go back to the
GAME menu and click the
Update file.
#14. Congratulations, you are now running 3.52m33 by TEAM M33!
**If you format the memory stick, it will then create all the needed folders**
3.52m33-4 UPDATE ONLY
To install the 3.52m33-4 update, you must be running 3.52m33.
#1. Once the file has been extracted and the memory stick formated, open the folder, and you will see a
PSPfolder. Open it, and you will see another folder
GAME150, open it. Now, right click on the M33UPDATE4 folder, and select COPY.
#2. Start the USB connection, navigate to the GAME150 folder, right click on a blank spot on the screen and select PASTE.
#3. You MUST now set your KERNEL folder to 3.52. To do this, turn the psp on, next, turn the PSP off, by holding the power button until it completely shuts off. Hold the right trigger, and turn your psp on. This will take you to the Recovery Menu. Select CONFIGURATION.
Go to GAME FOLDER HOMEBREW, and check to see that it is running 3.52 kernel. If it is not, click it to change the kernel.
#4. Once the kernel has been set, scroll up and click the BACK button, now scroll down to EXIT.
#5. This will now exit back to the PSPs menu. Go to the GAME menu, and click MEMORY STICK. You will see a file called 3:33 and have a calender in the background.. click it.
#6. Congratulations, you are now on 3.52m33-4 by Team M33.
3.71M33(FAT ONLY) NOTE:YOU MUST BE RUNNING 3.52M33-4 BEFORE YOU CAN INSTALL THIS FIRMWARE .
Download these Files:
http://www.psp-hacks.com/download.php?id=1259
^^3.71 Official Firmware Update.
http://www.psp-hacks.com/download.php?id=1277
^^3.71m33 Custom Firmware
(I suggest making a new folder for each download so you dont mix things up.)
#1. Once the file has been downloaded and extracted, go to the
3.71M33 folder. Right click the
UPDATE folder and select COPY.
#2. Start the USB connection, navigate to the removable disk and open it. Click PSP then GAME. Right click a blank spot on the page, and select PASTE.
#3. Once the file has been pasted, go back to the
3.71 Official Firmware and right click it, and rename it to
371.PBP
#4. After it has been renamed, right click it and select COPY.
#5. Navigate back to the removable disk, click PSP then GAME, then UPDATE.
#6. Right click a blank part of the screen and select PASTE
#7. Exit the USB connection.
#8. On the PSP, go to the GAME menu, click MEMORY STICK and select
PSP UPDATE VER. 3.71.
#9. Once it has finished installing, it will ask you to press X to continue.
#10. Congratulations, you are now running 3.71M33 by Team M33!
3.71m33-2 UPDATE
TO INSTALL THIS UPDATE, YOU MUST BE RUNNING 3.71m33 ON A FAT PSP. 3.71M33-2 Update (FAT ONLY)
Download these files:
PSP Downloads | 1.50 Kernel Addon for 3.71 M33
^^^1.50_addon (3.71m33-2 Update) (FAT ONLY)
PSP Downloads | 1.50 EBOOT
^^^Official 1.50 Update
I suggest you create a new folder for each download so you dont mix anything up.
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
1.50_addon, right click and select EXTRACT HERE. Inside this file is a folder named
UPDATEfolder. Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then
GAME (
NOT GAME150 or GAME371). right click on a blank spot on the screen and select PASTE.
#4. Go back to the 1.50 Official Firmware Update and right click it and select EXTRACT HERE.
#5. Once it is opened, you will see a file called
EBOOT.PBP. Right click it and select RENAME. Rename the file to
150.PBP.
#6. Right click the renamed
150.PBP file and select COPY.
#7. Go back to the USB connection. Back out of the folders until you get to the ROOT of the memory stick (the ROOT is where all the main folders are located). Right click a blank spot on the screen and select PASTE.
It should Look like this:
ISO
MP_ROOT
MUSIC
PICTURE
PSP
VIDEO
150.PBP
<<<---
#6. Exit the USB connection, on the PSP go to the GAME menu and select the UPDATE.
#7. Congratulations, you are now on 3.71m33-2 by Team M33.
3.71m33-3 UPDATE
TO INSTALL THIS UPDATE, YOU MUST BE RUNNING 3.71m33-1 or 3.71m33-2 3.71M33-3 Update
Download this file:
File Details- -
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
15080_371m333.zip, right click and select EXTRACT HERE. Inside this file is a folder named
UPDATE. Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then
GAME (
Not GAME150 or GAME371). Right click on a blank spot on the screen and select PASTE.
#4. Exit the USB connection.
#5. On the PSP go to the GAME menu and select the MEMORY STICK.
#6. Click 3.71M33-3, and press X to install when the menu is displayed
#7. Congratulations, you are now on 3.71m33-3 by Dark Alex/Team M33
3.71M33-4 Update
Download this file:
http://www.dark-alex.org/m33update4.zip
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
m33update4.zip, right click and select EXTRACT HERE. Inside this file is a folder named
UPDATE. Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then
GAME (
Not GAME150 or GAME371). Right click on a blank spot on the screen and select PASTE.
#4. Exit the USB connection.
#5. On the PSP go to the
GAME menu and select the
MEMORY STICK.
#6. Click 3.71M33-4, and press X to install when the menu is displayed
#7. Congratulations, you are now on 3.71m33-4 by Dark Alex/Team M33
3.72HX-1
YOU MUST BE RUNNING 3.71m33 or 3.71m33-2 TO INSTALL THIS CUSTOM FIRMWARE
Note. If you install this custom firmware, you will
NOT be able to use a PSX emulator. The only way to play PSX games would be to buy them through the PlayStation Network.
Download these files:
PSP Downloads | 3.72 HX Custom Firmware
^^^3.72HX-1
PSP Downloads | PSP 3.72 Firmware Update
^^^3.72 Official Firmware Update.
(I suggest making a new folder for each download so you will not mix things up.)
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
updater_372.rar, right click and select EXTRACT HERE. Inside this file is a file named
EBOOT.pbp. Right click the EBOOT.pbp and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then the GAME371 folder.
#4. Inside the
GAME371 folder, right click on a blank spot in the folder and select
New Folder.
Name the folder
UPDATE (in all caps).
#5. Inside the newly created
UPDATE
folder, right click on a blank part of the screen and select PASTE.
#6. Go back to the
updater_372 file, and inside you will see a file called
umodule.prx. Right click it and select COPY.
#7. Navigate back to the removable disk and click the
PSP folder, then click the
GAME371 folder , and finally click the
UPDATE folder.
#8. Inside the
UPDATE folder, right click on a blank spot on the screen and select PASTE.
#9. Go back to the
PSP_372_FW_UPDATE.RAR file, right click it and select EXTRACT HERE.
#10. Once it has been extracted, you will see a file called
EBOOT.PBP. Right click it and select RENAME. Rename the file to
372.PBP.
#11. Right click the renamed
372.PBP file and select COPY.
#12. Navigate back to the Removable Disk. Click the
PSP folder, then
GAME371 Folder, and finally click the
UPDATE folder.
#13. Inside the
UPDATE folder, right click on a blank spot on the screen and select PASTE.
#14. Exit the USB connection, on the PSP go to the
GAME menu and select the UPDATE.
#15. Congratulations, you are now on 3.72HX-1 by _HELLDASHX_.
3.80M33
YOU MUST BE RUNNING 3.71m33 On the Slim or at least 3.52m33-4 On the fat
Download these files:
3.80 Official Firmware
^^^3.80 Official Firmware Update
3.80M33
^^^3.80M33 Custom Firmware
(I suggest making a new folder for each download so you will not mix things up.)
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
380_m33rar, right click and select EXTRACT HERE. Inside this file is a file named
Update. Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then the GAME Folder.
#4. Inside the
GAME folder, right click on a blank spot in the folder and select
PASTE.
#5. Go back to the 3.80 Official Firmware Update folder that you created for the
15413_eboot.pbp download. Right Click the
15413_eboot.pbp and rename it to 380.pbp.
#6. Navigate back to the removable disk and click the
PSP folder, then click the
GAME folder , and finally click the
UPDATE folder.
#7. Inside the
UPDATE folder, right click on a blank spot on the screen and select PASTE.
#8. Exit the USB connection, on the PSP go to the
GAME menu click MEMORY STICK and select the UPDATE.
#9. Congratulations you are now on 3.80m33 by Team M33
3.80m33-5 UPDATE ONLY
To install the 3.80m33-5 update, you must be running 3.80m33.
Download these files:
PSP Downloads | 3.80 M33-5 Update
^^^ 3.80m33-5 Update
#1. Once the file has been extracted and the memory stick formated, open the folder, and you will see a
UPDATEfolder. Right click the
UPDATE folder and select copy
#2. Start the USB connection, navigate to the GAME150 folder, right click on a blank spot on the screen and select PASTE.
#3. Exit the USB connection, go to the GAME menu memory stick and click the UPDATE.
#4. Congratulations, you are now on 3.80m33-5 by Team M33
3.90M33
YOU MUST BE RUNNING at least 3.52m33-4 (on the fat) or 3.71m33-4 on the slim to install this firmware
Download these files:
PSP Downloads | PSP Custom Firmware 3.90 M33
^^^ 3.90m33
PSP Downloads | 3.90 Firmware Update
^^^3.90 Official Firmware Update
(I suggest making a new folder for each download so you will not mix things up.)
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
390m33.rar, right click and select EXTRACT HERE. Inside this file is a file named
Update. Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click PSP then the GAME Folder.
#4. Inside the
GAME folder, right click on a blank spot in the folder and select
PASTE.
#5. Go back to the
PSP_390_FW_UPDATE.RAR. Right click the file and select EXTRACT HERE.
#6. Once the file has been extracted, right click the
EBOOT.PBP and select RENAME.
Rename the file to
390.PBP. Right click it and select COPY.
#7. Navigate back to the removable disk and click the
PSP folder, then click the
GAME folder , and finally click the
UPDATE folder.
#7. Inside the
UPDATE folder, right click on a blank spot on the screen and select PASTE.
#8. Exit the USB connection, on the PSP go to the
GAME menu click MEMORY STICK and select the UPDATE.
#9. Congratulations you are now on 3.90m33 by Team M33
3.90m33-2 UPDATE ONLY
To install the 3.90m33-2 update, you must be running 3.90m33.
Download these files:
http://exophase.com/files/psp/390m33_2.rar
^^^ 3.90m33-2 Update
#1. Once the file has been extracted and the memory stick formated, open the folder, and you will see a
UPDATEfolder. Right click the
UPDATE folder and select copy
#2. Start the USB connection, navigate to the GAME150 folder, right click on a blank spot on the screen and select PASTE.
#3. Exit the USB connection, go to the GAME menu memory stick and click the UPDATE.
#4. Congratulations, you are now on 3.90m33-2 by Team M33
4.01M33
YOU MUST BE RUNNING 3.71m33 On the Slim or at least 3.52m33-4 On the fat
Download these files:
4.01 Official Firmware
^^^4.01 Official Firmware Update
4.01M33
^^^4.01M33 Custom Firmware
(I suggest making a new folder for each download so you will not mix things up.)
#1. Format your memory stick. Do to this, on the PSP, go to the
SETTINGS menu, scroll down until you see
SYSTEM SETTINGS.Click it. Now scroll down until you see
FORMAT MEMORY STICK click it. It will now ask you if youd like to format the memory stick, and that all information will be lost. Select OK.
#2. Once you have formatted the memory stick, go to the
401 M33.rar, right click and select EXTRACT HERE. Inside this file is a file named
401 M33. Inside
401 M33 there is a file named
UPDATE Right click the UPDATE folder and select COPY.
#3. Start the USB connection and navigate to the Removable Disk by clicking the start menu on your computer, and selecting COMPUTER (or MY COMPUTER). Now click
PSP then the
GAME Folder.
#4. Inside the
GAME folder, right click on a blank spot in the folder and select
PASTE.
#5. Go back to the 4.01 Official Firmware Update folder that you created for the
PSP_400_FW_UPDATE download. Right Click the
PSP_400_FW_UPDATE and rename it to 401.pbp
#6. Navigate back to the removable disk and click the
PSP folder, then click the
GAME folder , and finally click the
UPDATE folder.
#7. Inside the
UPDATE folder, right click on a blank spot on the screen and select PASTE.
#8. Exit the USB connection, on the PSP go to the
GAME menu click MEMORY STICK and select the UPDATE.
#9. Congratulations you are now on 4.01m33 by Team M33
4.01m33-2 UPDATE ONLY
To install the 4.01m33-2 update, you must be running 4.01m33.
Download these files:
[url="http://www.psp-hacks.com/download.php?id=1510"[/URL]
^^^ 4.01m33-2 Update
#1. Once the file has been downloaded, right click >>>>> and select EXTRACT HERE.
#2. On your PSP, go to [COLOR="Red"]SETTINGS[/color]. Then go down to
SYSTEM SETTINGS and click it. Scroll down to
FORMAT MEMORY STICK and click it. Accept the next prompt.
#3. Once
401M332.rar has been extracted and the memory stick formated, open the
401M332.rar, and you will see a
UPDATEfolder. Right click the
UPDATE folder and select copy
#3. Start the USB connection, navigate to the GAME150 folder, right click on a blank spot on the screen and select
PASTE.
#4. Exit the USB connection, go to the GAME menu memory stick and click the UPDATE.
#4. Congratulations, you are now on 4.01m33-2 by Team M33
****DOWNGRADE TO 1.50****
Follow this guide:
http://www.pspmod.com/forums/firmwar...6-27-07-a.html
****WINRAR****
WINrar is a WINDOWS program that extracts compressed files. You can download it here:
WinRAR - Free Software Downloads and Software Reviews - Download.com
Download it to your desktop, and then double click it to install.
To use winrar once it is installed, right click the .rar file and select EXTRACT HERE.
****USB CONNECTION****
Hook up the usb cable from your PSP to pc. On the psp, go to SETTINGS, then scroll down to USB CONNECTION and click it.
If you have a windows 98 computer, you may need to install a USB Mass Storage Driver. You can download the driver from:
Windows 98 USB Mass Storage Device Drivers
****3.52m33-4 Clearing Cache and Cookies****
There was an issue with a ps3news.com and Team M33. The owner of ps3news.com basically stole the source code for the M33 Custom firmware, he modified it, released it to the public knowing it was a bricker. M33 protected themselves by coding the -4 update to not install on PSPs that had ps3news.com in their cookies or cache. Buy not installing, it would corrupt the internal memory on the psp, causing it to brick. I recommend clearing everything if you've been to this site or not
**EDIT**
10-24-2007 Added 3.71m33-2 update/Add on
**EDIT**
10-31-07 Fixed 3.71m33 Download link
**EDIT**
11-6-2007 Added 3.72HX custom firmware
**EDIT**
11-09-07 Added 3.71m33-3 Update
**EDIT**
12-2-07 Clarified 3.52m33 installation on 1.50
**EDIT**
12-15-07 Added 3.71m33-4 Update
**EDIT**
1-12-08 Added 3.80m33 Installation
**EDIT**
2-3-08 Added 3.80m33-5 Update and 3.90m33 Custom Firmware
**EDIT**
3-27-08 Fixed 1.50 update in 3.52m33 installation AGAIN, Added 3.90m33-2 update
**EDIT**
8-4-08
Added 4.01m33 Installation and 4.01m33-2 Update
**EDIT**
10-27-08
Added 3.40oe to 3.52m33 update.
**EDIT**
10-28-08
Fixed the 4.01 Official Firmware Update Link
3.40oe-3.90m33 Custom Firmware Installation Guide. VERY NOOB friendly
