How to downgrade psp version 6.00. i can't download ISO games. my psp is psp 2001. please help me

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

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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

Downgraders don't work, if you get the wrong one, it will brick your PSP!

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/

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.

the PSP has to be hacked in order for you to play downloaded games. If you get a magic memory stick and a pandora battery it can be done easily even with the 5.50 firmware version. Google pandora battery, and magic memory stic or (psp mmj tutorial) and you get lots of good info.

Hope this helps.

i have tried this also i dont think there is a pass for this i have tried every folder every combination and everytime it is corrupt the only way to get onto system is to downoad from ps store it has some good demos you can try also walmart it running specials on psp games some 5-10$ hope this helps you

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.

You need a pandoras battery + magic memory stick. Look on google, there are a million guides. This downgrades it to version 1.5, and then lets you add custom firmware.

if you're running the official sony firmware (not a hacked version) you might as well forget iso's and homebrew for now. you'll have to downgrade your firmware first then go back to a custom firmware. i haven't been keeping up w/ the psp hacking scene lately, and i'm not sure what is the latest firmware that can be downgraded. a good place to check for more info is psp.qj.net as well as their forums. hope that helps!