I just bought a PSP version 2.81 with mobo TA-082 (that is: right IC1003 and left: IC6001, barely visible). Man, I did read a lot of forums in the last couple of days! Nevertheless I'm glad I've finally found for sure that I can downgrade my PSP, thanks God! What I know is that I can downgrade but have to have the original UMD for GTA Liberty.. I was not able to find a method to downgrade (from 2.81) without the GTA. Is there any? If there is no method to downgrade without GTA I will do my best to find the required verision of GTA. But then what downgrader should I use, which is the best/safest? The downgraders I know about are: 1. http://www.noobz.eu/joomla/index.php?option=com_content&task=view&id=38&Itemid=88888898 2. http://forums.maxconsole.net/showthread.php?t=53936 Thanks!