I haven't touched my PSP in almost a year and now I need to update the custom firmware on it. Last I checked, I have 3.40oea as my current firmware. Forgive my ignorance on this matter, but I do not know what I have to do to update it to the most recent custom firmware there is.
Like, do I have to downgrade first then move back up or what? Any help (with details) will be very helpful.