You can use an easy installer to create the Magic Memory Stick and Hardmod your PSP Battery.
Use this easy installer http://dl.qj.net/TOTALNewbi-easyInstaller-PSP-Tools-Utilities-(on-PC)/pg/12/fid/14749/catid/193 to install the files you want on the Magic Memory Stick. Extract the file and select START to start the easy installer. When it gets to the part to select what type of Magic memory Stick you want choose option 1 (Original FAT Pandora menu) if you want to downgrade the PSP to 1.50 firmware. Choose option 4 (universal unbricker V3) if you want the Magic memory Stick to install directly to 3.71 M33-2.
I NEVER fail, i'm just SUCCESSFUL in finding out what doesn't work Freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.
DK TO AVOID PAYING FOR THE PANDORA BATTERY YOU CAN MOD YOUR OWN YOU HAVE TO TAKE THE BATTERY APART THOUGH AND ADD SOME STUFF IF YOU NEED HELP LET ME KNOW. IF ITS TOO MUCH FOR YOU TO DO A PANDORA BATTERY COST BOUT 50-60 US DOLLARS