hi sir im planing to buy a UP modchip, the devolution is too expensive. can anyone give me some idea w/ UP modchip is it gud? im using 3.11(FW sony)can i downgrade my fw using this chip? what else can i do if i have UP modchip installed? can i install it myself? can i unbrick my psp using this? thx in advance sir!! last question, can i used this modchip to downgrade to 1.5 den go homebrewd and after that unstall the modchip, so i can use it to other psp?