If you wanna make it a lot quicker....get 'Disinter' and create yourself a Jigkick battery and a boot card.
You will need a custom firmware psp to run it...(Ooh you already got one lol)
A spare battery....and another memory stick (1gb) will do it. (1.5/3.4/3.71 updates available in the downloads)
Then just follow the instructions ....created mine and took my daughter psp straight from 3.40-0e to 3.71-m33-2 in minutes......no running various updaters...
Check the guides and stickies in the Mod/Homebrew section
You will need a custom firmware psp to run it...(Ooh you already got one lol)
A spare battery....and another memory stick (1gb) will do it. (1.5/3.4/3.71 updates available in the downloads)
Then just follow the instructions ....created mine and took my daughter psp straight from 3.40-0e to 3.71-m33-2 in minutes......no running various updaters...
Check the guides and stickies in the Mod/Homebrew section