Update my 2006-era psp to the latest shebang

[Monkeyget]

Hi,

My psp was taking the dust and i've decided to play again but I'm a bit lost :
Currently I have the 3.03 OE-B version of the firmware. I originally had the 1.50 version and i upgraded to the 3.03 OE-B version with the following tutorial : http://forums.qj.net/f-psp-firmware-...ead-84905.html (an old version of it actually).

My question are :
How do I upgrade it to the current firmware version?
Is it possible to go downgrade it to the 1.50 version?


Sorry for the n00bish question but I'm completely lost Help will be greatly appreciated

[dangee]

I think its something to do with launching a 1.5 update from recovery - (that's the system I used for 3.40-OEA)
more..

..then you can run the M33 builder

[Monkeyget]

Ah, thanks for the pointer dangee.

I feel safer now that I have that recovery tool on my PSP.