I bought a psp slim with 3.71-m33-2 installed, I don't have the pandora battery.
Do I need to install 3.71 m33-3, m33-4, then 3.80 then 3.90?
or can I just go straight from 3.71 m33-2 to 3.90? I heard some psx games don't work on 3.90 though but this can be solved using a popsloader plugin right?
Also is there a chance of bricking it during this process?
Can somebody help me? Please.