How to install 5.00 M33-4 custom firmware

DA is back with 5.00 M33-4 custom firmware update.

Changes in 5.00 M33-4:
– Speed selected for umd/iso was not properly locked in some new games that used scePower_EBD177D6 instead of scePowerSetClockFrequency to change speed.
– UMD/ISO speed settings now apply to PSN games too.
– Fixed libupdown.prx connecting to instead of sony when npsignin_plugin checks for a new version and m33 update is enabled.
– Iso file descriptor was not closed in driver deletion
– Added a shutdown command to vshmenu.

If you already have 5.00 M33-4 custom firmware installed on your PSP you could either install via Network update using WiFi internet connection.If you don’t have a WiFi connection, you can download the update from here. Extract the files to your m0://PSP/Game folder and install using XMB menu

Credits goes to DA for his awesome work! Cheers

Note: IF you do not have any custom firmware installed on your PSP, read my previous posts on How-To install the same. Have fun!


How to install PSP custom firmware 4.01 M33-2 using DCV7

Small write up on how to install custom firmware using DCV7

for Pre-requisites please check my earlier post

1. Download DCv7 and Sony original 401 firmware

2. Extract the rar file and transfer the DC7 folder into /PSP/GAME folder on to your memory stick

3. copy the downloaded 401.PBP in to your memory stick root

4. Take a back up of your memory stick

5. On your PSP goto game and select Despertar del Cementerio v7.7

6. Follow the steps. Once the installation is complete press X

7. Insert the pandora battery on to your memory stick and press the key combination which you selected during installation of DC7

8. The Recovery console appears. You can install or test 4.01 M33 2


Official readme:

– A format flash function has been added which is usefull to correct problems in some psp that get an error when installing 4.01 M33, or to have a custom partitioning of the flash.

– An id storage tools function has been added. It allows to create a new id storage (including for first time, the regeneration of region and umd keys), change region (including umd region), or fix wlan mac address.


Best part of this release is you can restore idstorage at least 90% which is really cool for bricked PSP’s

Enjoy! and do this at your own risk ūüėČ


How to install Custom firmware 4.01 M33-2 using DCv6

below is a small guide for noobs (like me) on how to install custom firmware 4.01 M33-2 on your PSP


1. Sony PSP Slim/Phat (i have tried only on slim)  with custom frimware 3.80 M33-5 (i have tried only in this firmware. Should work on older ones as well)

2. Memory Stick duo ~ 256MB (Original preferably)

3. Pandora battery. (Refer my earlier post)

4. Sony 4.0.1 Original firmware

Following are the steps to install

1. Download Despertar del Cementerio v6 (also called DCv6)

2. Download Sony Official PSP firmware V4.01

3. Connect your PSP to computer using USB (enable the USBMODE) or insert your memory stick duo to a card reader.

4. It is not necessary to format the memory sitck but its required to take backup of your gamesaves and your other precious things from memory stick before peforming the update 

5. Extract DCv6 to a folder and copy the DCv6 folder to ms0:/PSP/GAME folder.

6. Place the downloaded sony’s official firmware in root of the memory stick. This file should be named as “401.PBP”

7. Insert the memory stick back to your PSP and starrt your psp. Go to Games and you would see Despertar del Cementerio. Press X to start the application.

8. Then press “X” as it says to start the application.¬† This will extract the 4.01 firmware and make your meory stick as magic memory stick

9. After installation, it would ask you to select a key combination upon clicking while booting, PSP goes to recovery mode. In DCV5 it is “UP” arrow key on the D-pad. But in DVC6 you have the possibility to choose. I chose “L” key.

10. Once the installation is over, insert your Pandora battery and then Press the key you selected in my case “L” and then start the PSP console. It will now boot to the recovery console. You would see that the new DCV6 has a GUI and no more terminal like screen (Great work DA!)

11. You will have following options in the recovery menu:

   Install 4.01 M33, Install 4.01 OFW, NAND operations, Hardware Info, Test M33, Shutdown, Reboot Device

(Image is so not clear as it was take from my camera ūüôā since screenshot didnt work)

12. Best part of this release you can test the 4.01 M33 without installing it!

13. Before installation i would recommend you to perform a NAND backup as it would be helpful if you brick your PSP. The files will be stored in the mem stick and keep it safely in your pc/backup as this would your lifesaver (PSP saver :-)) when its bricked

14. To install 4.01M33, select “Install 4.01 M33” and press X on your PSP. Sitback and relax.

15. Once the installation is complete, press X to reboot your device.

16. Now your PSP has 4.01 M33-2 custom firmware!

17. You might want to rename your PSP of your choice, and have to enable ISO driver to play games from ISO as your old settings are overwritten with new firmware installation.

Install at your own risk and kindly read this twice to understand better on what to you would be doing. Have fun!

Note: Credit should goto DARK_ALEX for writing such a wonderful piece of sw and also this wil not work on new PSP with T-088 (3) mother boards as they are pandora proof.

Games, PlayStationPortable, PSP

HowTo: Install Custom firmware on PSP Slim & Lite

NOTE: This method will work only on PSP-1000 & PSP-2000 series till TA-88V1 Motherboards.

This method WILL NOT WORK on PSP-2000 with TA-88V3 Mother boards and new PSP-3000 series. So kindly check this before buying or making the pandora battery.

Below is a small tutorial on How-To install a Custom firmware on PSP Slim & Lite. This tutorial will explain how to install Custom Firmware 3.80 M33-5 from any original version


1. PSP Slim & Lite (There are talks that new PSP Slim & Lite with TA-88 Motherboard which does not support Pandora Battery!)

2. Pandora Battery

3. Magic Memory Stick

Pandora Battery: This baterry is nothing but a modified Original Slim or Phat battery in your PSP. The Pandora Battery enables the PSP to enter into Service mode.

There are lots of videos available on YouTube on how to do this. But please do it carefully as there are chances that if you miss something the battery would be unusable.

Best bet would be buying this already made pandora battery in some website. I got it through “

Magic Memory Stick: Some special files in a given folder structure in a memory stick makes our memory stick as a magic memory stick

Step1: Download this file DCv4-TM

Step2: If you have a card reader, insert your Memory Stick pro duo into that and connect it to your PC. IF you dont have one, connect your PSP in USB mode. Use memory stick of size <4GB

Please take backup of your memory stick as the next ste would FORMAT your memory stick

Step3: Extract the downloaded files¬†to “desktop” or “C:\temp” and run the “Install DCv4.bat”

Step4: follow the instructions and your Magic memory stick is reday!

Step5: Assumption here is you either have a Pandory battery made or purchased. Remove your existing normal battery from PSP.

Step5.1: Before you install the custom firmware, take the backup of your PSP NAND. This is part of the pandora menu. This is most important just in case if you brick your psp, it would be easy to recover all the functionalties.

Step6: Insert the magic memory stick first. Then insert the pandora battery in your PSP. Then press the UP arrow key on the D Pad on psp and then press the power button. This should bring the recovery menu in your PSP.

Step7: Follow the instructions. After the installation is compelet, press X to reboot. if you dont there are high chances of bricking your PSP.

Step8: Now you have custom firmware v3.80 M33-5 installed on your PSP

This tutorial is only for PSP Slim & Lite and not for PSP Phat (Old models). This might work on PSP Phat but no guarantees.

Notice: I shall not be responsible if you brick your PSP or any damages caused to your PSP. Whatever you do, do it carefully. Read more than once to understand the process. Leave your comments if you need more assistance.