This video will walk you through the process of updating a psp to the 5.50gen-a.This is information you may want if you are an avid psp user and would like to hide your Mac address.
PBP in the folder PSP/GAME/UPDATE - it is important the the folder names are ALL CAPITAL LETTERS.
Then, with your PSP charged (and preferably still plugged in to avoid battery glitches), go to the games section, select Memory Stick and then select your update.
Then navigate to the PSP's game menu on the XMB menu and select update.
Make sure the PSP has about 50% battery and is connected to a power source, just to be on the safe side.
If it powers off while it's updating, it can be a nightmare to fix it.
Danish, German, English (United States), Spanish, French, Italian, Dutch, Norwegian, Polish, Portuguese, Russian, Finnish, Swedish, Turkish, Japanese, Korean, Chinese (simplied), Chinese (traditional).
If you ask why I wrote partly behind the PRO CFW and Downgrader, then you’re asking the right questions.
At first the PRO CFW: I said partly because Qwikrazor did not update the c IPL Installer for the PRO CFW (only supports PSP 1000s & non-88v3 2000s), which means there is not “full CFW” for firmware 6.61 as of now.
Updates add new functionality as well as security patches to prevent homebrew applications and plugins from being executed on the system.