Earlier i used to wonder what is the signature most commonly seen here means . For total newbie like me it means the firmware downgrade upgrade people have done. I just wanted this thread because there were not too much info on how to upgrade a already downgraded FW-1.5 to 3.10OE A. And i have done that on my TA-082 it didnt brick!!! So to the newbies first thing to customize your psp is to check if it is TA-082 motherboard psp ? If you purchased new one more probability is it is or some other ta-086 or similar. So first of all do anything else but confirm than which ever forum you surf make sure you are reading downgrade or upgrade thread typically for Ta-082.