Question about Sony PlayStation Portable (PSP) Console

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My psps firmware is 5.50 and i want to downgrade it to 5.0 without pandora battery..

I have a slim psp and i accidently upgrade it to 5.50 and i cant play iso.cso anymore. how can i downgrade to 5.0 with pandora battery? rkiyori@yahoo.com

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There's various methods of doing this to be honest.

The best one I have is one I used a couple of years ago here...

http://pspupdates.qj.net/Tutorial-How-to-unbrick-your-PSP-via-Pandora-Battery/pg/49/aid/100693

It tells you step by step what to do. It will take a while so make sure you set aside a couple of hours for it!

I will also email you the link just in case it doesn't work on here.

Best of luck dude.

Craig

Posted on May 27, 2009

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1 Answer

Well my psp at first had a version of 3.71(i could play iso games)... then i updated it to 6.00 (i can't play iso games)....now i want to make it 3.71 ....how is that possible?....could you tell me step by...


Hi There!
Honestly, downgrading the firmware is tedious compared to upgrading it. I would suggest you have someone who has the technical knowledge to do this. Failed downgrade could lead to a bricked psp. Which will render it useless. Some can be reflashed and will work back while some cannot.
However, you can purchase a Pandora battery for you PSP. Remember: You CANNOT downgrade your PSP with any firmware higher than 3.50 without a Pandora's Battery.
You may check this link for a self-help guide in making your own Pandora battery. This is for a PSP slim model.
http://forums.maxconsole.net/showthread.php?81424-How-to-create-a-Pandora-Battery-and-Slim-Mem-Stick-WITHOUT-a-Phat-PSP!
Hope that helps!

Feb 03, 2011 | Video Game Consoles & Games

Tip

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
here.!

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

1 Answer

My psps version is always 9.90 i cant upgrade it.what do i suppose to do?plsss.need help.tnx


Your psp has custom firmware you will have to use a pandora battery and a Magic memory stick to bring it back to Official firmware or keep it modded and just downgrade.

Apr 20, 2010 | Sony PlayStation Portable (PSP) Console

3 Answers

I accidentally updated my psp to 6.20 now how can i downgrade it to 5.30 again is anybody can suggest what to do


well if its a 3000 ur out of luck, im sorry but you cant downgrade 3000, if you have a 2000 or below then you need a pandoras battry and only phat batterys can be pandorized and you need the necessary firmwares and custom firmwares,

try googling psp hacks.com go there they may help you as they update their site with new software that is coming out for the newer psps, not psp gos though

Jan 15, 2010 | Sony PlayStation Portable (PSP) Console

1 Answer

My PSP 2000 slim don't turn on. This happen when I upgraded my firmware version from 5.0 to 5.5 GEN A.After the installation I restart my PSP, but my PSP won't start.LED lights on (green)for only 8...


You CANNOT downgrade to an earlier custom firmware or software sit until a newer custom firmware is available. You will have to make a Pandora Battery and a Magic Memory Stick. Basically you have to open up a PSP battery and cut a certain peg. The magic memory stick is alot easier and doesn't pose a threat to the PSP. Watch a tutorial on youtube for the Pandora Battery so you don't stuff up, there is a different method for the PSP Slim battery

Dec 23, 2009 | Sony PlayStation Portable (PSP) Slim...

3 Answers

Getting custom firmware when i have v5.51


Yes it is possible, depending on what model your PSP is. There is a special Battery that will allow older PSPs to go into a type of "service" mode, allowing you to upgrade or downgrade at your will. There is much more information on this here:
http://pspupdates.qj.net/Noobz-C-D-release-Pandora-s-Battery-unbricker-for-all-PSPs/pg/49/aid/100579

It is referred to as an "Unbricker" which means to fix a broken PSP that was flashed incorrectly, or attempting to upgrade to a custom firmware and failing during the process. When that happens the PSP becomes "bricked", and before this Pandora's battery was created the PSP would have been doomed as a paperweight.

So YES! It is possible, but it is difficult if not impossible to do without knowing someone that has experience in modding PSPs and the required hardware and software, aka the Pandora's Battery. You can purchase one of these batteries from online retailers that I will not list as I'm not here to promote specific sites!

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

2 Answers

I have sony psp fat 1006 my firmware is 5.51 how to put games in psp i have games cso files


well im happy to say that 1000 series are easy to mod! Here is the Deal!

Sony discovered that they could repair a psps firmware and functions using the battery to by-pass the security features! What this tells us is that we can install custom firmware on a psp!

So you have to make ur phat psp battery into a pandoras battery! here is the issue with this! I never made my battery into a panodra! i had a friend mod my psp! in that process he made my phat battery into a pandora battery! so now alli do, is install the pandora files which this site help me get!
http://forums.afterdawn.com/thread_view.cfm/688507 five comments down

this site also provides all the tools you need t mod ur psp! what im concered about is that the program it provides to make a ur battery into a pandoras may not be able to work until you install modded software! understand.... the program works on mine only because i installed the modded software with pandora battery then ran to make other phats pandora batterys! so yo u have to make a pandoras battery try to find programs that run and will intsall pandora files ofr a phat battery threw usb connection on the psp

Jul 20, 2009 | Sony PlayStation Portable (PSP) Console

5 Answers

How can i downgrade a psp 3000, 5.51 to 4.01? I need to modify it so i can play games in my psp! help!!!


pandora and magik stick cannot be used with psp 3k models.. you have to wait until a working exploit is found.. and dont EVER upgrade your psp if you want to do something with it.. google is you friend. take a look at mohh exploit.. still in the verry beginning.. but very promising.

Jul 16, 2009 | Sony PlayStation Portable (PSP) Console

1 Answer

Iso cannot be recognized in 5.02


you had m33 custom firmware(plays iso) installed on your psp and then you upgraded it with sony officail firmware(doesnt play iso) you will need to downgrade your psp

pandoras battery

youtube an google r ur friends

Jan 11, 2009 | Sony PlayStation Portable (PSP) Slim...

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