Question about Sony PlayStation Portable (PSP) Console

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The version of my psp is 5.55 ,how can i downgrade it to 3.95?i m not able to play iso games

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If it is not a psp 3000 series you can use a pandora battery. WARNING: Do not use pandora if it is a psp 3000 series. You will brick your psp.

Posted on Jul 14, 2010

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the version of my psp is 5.55 ,how can i downgrade it to 5.30?i m not able to play iso games

Posted on May 08, 2010

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.....high version 5.55 we cant download games


psp downgrade fro 5.50 to 5.03 version is required to download and play iso games. try thid link how to downgrade : http://www.youtube.com/watch?v=4COQtaUPNHU

Nov 24, 2010 | Sony PlayStation Portable Slim Black...

1 Answer

I bought my psp3000VB with v6.2 from Japan. Basically my psp cant play ISO game, therefore I seek for a way to downgrade my software version. Can anyone provide me a solution?


Unfortunately at this time it is not possible. Any PSP 3000 on a version of firmware above 5.03 will not be able to be downgraded. I am afriad you are stuck with a standard PSP

Sorry I cant be of more help

Aug 24, 2010 | Sony Video Game Consoles & Games

1 Answer

How to downgrade psp 1001 from ofw 6.20 to cfw 5.00


Click on the link below and watch the video to learn how to downgrade your Sony PSP to cfw 5.00

http://www.youtube.com/watch?v=WP9OhtepUEM

Apr 07, 2010 | Sony PlayStation Portable (PSP) Console

1 Answer

How to downgrade psp version 6.00? I cant download ISO games. I want to return the old version of my psp 3.9 m33 so that I can play Iso games. Please help me.My psp is PSP 2001.


yes,you can downgrade thank god because if you were model 3000 it is hard to downgrade yourself 1,go to a sony provider in your country and buy a original slim battery then you can make a pandora battery and magic memory stick there are plenty of videos in youtube about this in youtube and google or you can buy the pandora battery and magic memroy stick from here by not risking anything(accepts paypal) http://pandorabatt.blogspot.com/

Oct 15, 2009 | Sony PlayStation Portable (PSP) Console

2 Answers

I cant play the game in memory stick..


you'd first have to downgrade your psp. try to lower it to 3.50 or 4. something. then insert the .pbp file... this file is a hack.. or an upgrader for a psp.. once you do this.. your psp will be back to version 5.03 but now you can play downloadable games.

Jul 27, 2009 | Sony PlayStation Portable (PSP) Console

2 Answers

How do I downgrade my psp 3000! (5.51-5.03 or lower) please Help!


yow... i have a psp3000 with a currently working hack... find in the internet a hack called chickHEN... i'm sorry but i don't remember where i found it.

Jul 25, 2009 | Sony PlayStation Portable (PSP) Console

2 Answers

Playing iso.cso games in psp v 5.5


you need to downgrade your firmware to 3.71, have a look at this site it may help www.psp-hacks.com/2006/10/23/psp-iso-compressor-v13/

Jun 01, 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...

1 Answer

Iso/cso won't run to PSP version 4.20


You cannot play .iso or .cso files (or any homebrew games) on your PSP unless you have firmware 1.5 or a custom firmware. Any "off-the-shelf" firmware such as 4.2 will not support these types of files. They will just show up as "Corrupted Data".

You can go through the process of downgrading your firmware from 4.2 to 1.5, then from 1.5 you may upgrade to a custom firmware such as 5.00 m33-4. Doing so would require a good deal of technical know-how and a LOT of patience. If you do not want to risk ruining your PSP, do NOT try this. Research methods of downgrading such as "Pandora's Battery" and other firmware downgraders.

You were able to download games from the PSP website because they are programmed to play on the current firmware. Even if you were to (somehow) properly convert the .iso or .cso files to an EBOOT.PBP file, it would not run unless you have firmware 1.5 or custom.

Jan 03, 2009 | Sony PlayStation Portable (PSP) Slim...

1 Answer

Psp fix


Which software version do you have?iso's will not play on version 4.05 you have to downgrade.

Aug 30, 2008 | Sony PlayStation Portable (PSP) Console

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