Unzip/Unrar it and rename it to EBOOT.PBP and place it in the folders on your memory stick like this: PSP/GAME/UPDATE/EBOOT.PBP
can someone plx help me ith this step... I don get this.. there is one file. don overwrite wut.. lol.. don wun my psp bricked so just asking for help
get it from here http://dl.qj.net/PSP-Firmware-1.50-File-(EBOOT)-North-America-PSP/pg/12/fid/163/catid/163 then rename it as the guide says. Please pay attention so you do not brick you PSP. I just downgraded my white PSP without a hitch. I have downgraded 4 PSP's and have not ever had a problem just follow the directions
Oh.. iight.. BTW copy the files inside the MS_ROOT from the ZIp file and replace in the PSP right.. coz thas the part i get cinfused.. although i read it a hundered times