if manage to get the 1.5 firmware by any chance

[coolsoul]

hi if i mange to get my psp fat firmware to 1.5 some how so can i jump stiaght to any cstoem firmware or i have to go thorogh each of the firmwares to get latest i mean that for now i wanna get PSP Custom Firmware 3.90 M33 so can i run it straifght from 1.5 thanks n do i need any umd disk to upgrade to custom

[mike_jmg]

You'll need to go through 3.52 M33 to install the latest firmware, like this:

1.50 ---> 3.52M33 ---> 3.52M33-4 ---> 3.90M33

[mike_jmg]

You'll need to go through 3.52 M33 to install the latest firmware, like this:

1.50 ---> 3.52M33 ---> 3.52M33-4 ---> 3.90M33