Question about Sony PlayStation Portable (PSP) Console

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Upgrading to 3.52 m33 from 3.52 only

How do you do it and is it sure that your psp will not get bricked?

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It is impossible

u have 2 downgrade it to 1.50 and upgrade it with custom firmwares from there.

Posted on Dec 04, 2008

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You cant upgrade from an official 3.52 to a 3.52 m33 but you can go around this but it involves intentionally bricking your psp you will brick your psp then use a pandora battery to 'revive' it you will be running a semi-1.50 firmware then its just the case of upgrading to 3.52 m33 :D for more info:

Posted on Sep 22, 2007

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Use this its the safest way and make sure your psp is fully charged and when you do the downgrade upgrade make sure ure psp in pluged in to (just follow the instructons)

Posted on Sep 05, 2007

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SOURCE: unbrick psp

Watch this video. It tells you how to unbrick it!

Posted on Aug 08, 2008

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I upgraded my psp 2000 5.50 m33 using the UMD of DISSIDIA. after it, it won't run my ISO/CSO.and also; i can't reboot my psp after it.thanks a lot -joval06

1.] I think you have done something wrong... Have it re brick by a pandora battery & magic stick... Your psp is already brick...

Oct 08, 2010 | Sony PlayStation Portable (PSP) Console


How to hack a psp without pandora ?

Since ChickHEN is out PSP-2000 owners with a TA88v2 or less or a TA90v1 motherboard now have the option to now install Custom Firmware without the need of a Pandora battery.We have put together a Easy installer that contains everything you’ll need. Hellcats Recovery flasher, ChickHEN, PSP firmware update 5.00.

Warning make sure you only try this on a PSP that will accept PSP Custom Firmware flashing (Custom IPL) otherwise you will brick your PSP!!! PSP-3000’s will not take CFW. Check your PSP will take CFWhere. Or run ChickHEN first, then when ChickHEN is loaded run PSPident from the Game XMB menu. (PSPIdent with install with this easy installer)
Steps to install CFW on a PSP Slim without a Pandora battery.

1. Check and triple check you have a hackable PSP that will accept
custom firmware flashing without resulting in a BRICKED PSP. Make sure you have a PSP with a TA88v2 or below only + or TAv90v1. If your PSP has a TA88v3 or above or is a PSP-3000 DO NOT proceed!!! You will brick your PSP.
Run the installer and point it to your Memory stick Pro Duo root.
2. If you don’t have don’t have PSP firmware 5.03. Get that here: PSP Firmware 5.03 Make a folder called UPDATE in your PSP/GAME folder and place the eboot in there on your memory stick pro duo.
3. Now lets run ChickHEN to have a homebrew enabled environment. In your PSP go to photo then click the ChickHEN photo and wait. If the PSP jams, please retry. If it flashes colours and reboots you have loaded ChicKHEN. Check your system info to be sure it say’s 5.03 ChickHEN R2. If you need help getting ChickHEN to run please visit this post.
4. Now with your PSP rebooted in ChickHEN go to your PSP XMB game menu and run Hellcats Recovery and install 5.00 M33!!! Your PSP will reboot, follow the instuctions to install PSP Custom Firmware 5.00 M33. After your done you can update to 5.00 M33-6
Easy ChickHEN CFW installer (Without Pandora) (27.9 MiB,)


on Mar 10, 2010 | Video Game Consoles & Games


Pandora's Ultimate Magic Stick 3.80M33-5

New version of UPMSv3 - universal PSP Unbricker/Downgrader/Upgrader, also known as Pandora's Ultimate Magic Stick, Now work with DC ver4 (Dark_AleX’s), for installing CFw 3.80M33-5 and creating memory stick into a “Ultimate Magic Stick” for use with “Pandora’s battery” (jigkick). Works for both PSP, Slim and/or Fat, and 1 stick for all functions for Unbricker/Downgrader tools. Also available is the “UPMS_v3.pdf Guide” to help you get started and usage.

The Ultimate Pandora’s Magic Stick is the simple solution to easily accomplish any of the following:
  • Recover any bricked PSP (Fat or Slim) and install sony firmware or CFw M33.
  • Upgrade Fat-Slims PSP to CFw 3.80M33-5, with 1.50 kernel patch-Fat Only.
  • Upgrade Fat-Slims PSP to CFw 3.71 M33-2, with 1.50 kernel patch-2 -Fat Only.
  • Update to 3.71M33-4 are installed to the ‘GAME’ folder from the XMB.
  • Downgrade Fat PSP to Fw 1.50.
  • Upgrade Fat PSP straight to CFw 3.52M33 from Extended Boot Menu then install update 3.52 M33-4 from XMB, without need to downgrade to 1.50.
  • Boot up PSP using Ultimate Loader with support for choosing which Pandora’s you reach V1, V3 or V4.
  • Boot up PSP to XMB with UPMS inserted-Fat Only.
  • Boot up to a full FW 1.50 from Memory Stick-Fat Only.
  • Use PSP Filer and other tools (If it requires 1.50, can’t for Slims).
Note: This software is free, and comes with no warranty. Despite it has been tested and it has worked, there is some risk with any PSP operation that involves flashing, so please try this at your own risk!.

Only Memory Stick "Pro Duo" are compatible. Memory Stick Duo are not supported. Read more... for installation

on Mar 06, 2008 | Sony PlayStation Portable (PSP) Console

1 Answer

When I hit home it mutes my PSP

So you are having problem with your HOME button?

Try this (you're working with M33 CFW installed device, please note that risk of bricked is 50%. It's recommended that technicians service are needed.):
1. Get the latest M33 firmware update from
3. And there's guide that will bring you to the firmware update.
4. Read the instructions carefully and you'll successfully update your PSP to the latest firmware.
5. Please note that before you upgrading your system your battery must be fully charged until 100%.

Any questions? Feel free to ask me =]

Jul 06, 2009 | Sony PlayStation Portable (PSP) Console

1 Answer

Psp update faile and blackout

sounds like u bricked it, u need a tool or pandora battery an magic mem stick to make it come alive, hopefuly u got a mate who has this stuff, otherwise if real desperate maybe i can help, let me know.

Apr 10, 2009 | Sony PlayStation Portable (PSP) Slim...

1 Answer

The game could not be started..

if you have slim psp upgrade it to firmware 3.90 m33 or 4.01 m33-2,to read your cso or iso files, go to the psp technician to help you to you to upgrade,because they use a pandoras battery to upgrade your psp,.you cant upgrade your psp without the pandoras battery..

Oct 05, 2008 | Sony PlayStation Portable (PSP) Console

1 Answer

Unable to read installed games

upgrade your psp to firmware 3.90 m33 0r 4.01 m33 go to the psp technician to upgrade your unit..

Oct 03, 2008 | Sony PlayStation Portable (PSP) Console

1 Answer

Psp updtinting from 3.5 m33 4 to 3.71 m33

try when before upgrading change your kernal to 3.52 kernal instead of 1.50 if you already did that and its still not working get a program called IDstorageKEYcleaner or somthing like that google it idstoragekeycleaner

Jul 16, 2008 | Sony PlayStation Portable (PSP) Console

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