[Xblade]

Can someone give me a link to a guide that will instruct me on how to install custom firmware on a psp phat official firmware 1.5?

 

[Silenus]

Here is a great thread.

1 Stop Guide to 3.52 M33/3.71 M33/3.80 M33/3.90 M33/4.01 M33/5.00 M33 Custom Firmware + Updates & Add On's.

 

[Hiei-YYH]

PSP > GAME > UPDATE

this is where you need to put the cfw + the ofw needed to install

for example

/PSP/GAME/UPDATE/EBOOT.PBP
/PSP/GAME/UPDATE/500.PBP

and then, execute from game menu

 

[masta.g.86]

Installing Custom Firmware - PSPWiki

 

[Xblade]

Thank you guys. Got everything I needed.