<p>I have a strange feeling that I'm about to piss people off here by asking the same thing that has been asked over and over on these comments, but I've been trying the entire day to sort out my old PSP with some custom firmware. If anyone can make this clear to me I'd greatly appreciate it.</p>
<p>I'm using a PSP 1000 with firmware 3.80, I tried to update with 3.80 m-33, but it obviously said that I already have 3.80 and there is no need to update. So, I downloaded 3.90, renamed it 390.PBP and placed it in the UPDATE folder along with 3.90 m-33. Then I went to the folder on my PSP and tried to run the update and it said "the game could not be started."</p>
<p>Am I doing something wrong? Do I need to buy a "Pandora battery" or something? If you know what I'm doing wrong I'd greatly appreciate some help, thanks.</p>