Thanks to PSP-Hacks.com
Thanks to QJ.net for the banner

(IMG:http://pspupdates.qj.net/uploads/articles_module/57594/downgraderishere.jpg)

Thats right! Dark_Alex has released a new BETA with some help from Mathieulh and Yoshihiro from SonyXTeam!

Remember, this is still a BETA and could possibly brick your PSP! There are a lot of reported successions though! Use this downgrader at your own risk!

Requirements:

Your PSP CANNOT be a TA-082 (If you do have this PSP version, it may result in a brick)
Your PSP CANNOT be a factory 2.50/2.60 PSP! It had to have been updated once before from a previous version or the downgrader will not work!
Instructions:

Extract the files form the download below into the ROOT of your memory stick. And select yes to replace any files.
Run GTA and load the eLoader.
In the eLoader menu, choose the downdater test. (WARNING: the program won’t output any display and any warnings, it will initiate the downgrader process inmediately.)
The memory stick light will flash indicating the PSP is being flashed from the files on the memory stick.
The screen WILL NOT display any info or anything for safety purposes!
Wait for the memory stick light to stop flashing and wait at LEAST 1 minute!
Now turn off your PSP after waiting enough time and making sure the memory stick light is no longer flashing.
Turn your PSP back on. If all worked correctly, you can now enjoy the full benefits of firmware 1.5! If things didn’t go so well, you might still have 2.6 or even worse a paperweight. YOU TOOK THE RISK!


Download: 2.5 Downgrader BETA
Download: 2.6 Downgrader BETA

This post has been edited by Michael: Jul 1 2006, 10:55 AM