Hi guys im new on psp stuff and this is the question i have. yesterday i bought new black psp and i did not update my psp. and still on version 1.50 and i want to know how can install 3.71 M33-3 firmware ? please help me guys i realy need help. and today i bought new psp pandora battery with memory on ebay for incase i screwup i can downgrade to original version wich is 1.50. PLEASE PLEASE PLEASE HELP ME GUYS HOW CAN I INSTALL OR PUT 3.71 M33-3 FIRMWARE on my psp ? IF YOU GUYS EXPLAIN ME STEP BY STEP I APPRECIATE IT. IF YOU GUYS GHELP ME I WILL MAKE DONATION TO YOUR PAYPAL ACCOUNT. LET ME KNOW GUYS.