Downgrading Help 3.90M33

[AshtonNewton]

My psp is jacked up and i need to downgrade and then im going to trade it in only if it gets fixed, cause i want a slim darth vader please help me out someone.

[hodgy47]

Create yourself a despertar v3 or v4 memstick and pandora battery and when you run it choose the option to install Offical firmware.

-EDIT- Actually create a normal pandora and go to 1.50 cos if you do the above once on OFW you cant change your battery back so go to 1.50 and then you can.