Help upgrading a downgraded 1.5 psp
First of all, i'm a noob, so try to use the most simple language possible.
I downgraded to 1.5 from 2.71 using dark alex's downdater, just to play with some homebrew and whatnot. But i've decided i want to update to the standard official psp firmware 2.82, mostly because i'm getting GTA VCS.
I thought i would be able to simply run the EBOOT like a normal update. When i do this, it does the normal thing where it goes to the PSP screen, and then i see a screen where the letters are supposed to be, saying "You are updating your psp... etc", but the letters arent there, it is a blank screen with the X and O at the bottom. So cant update the normal way, and i dont know what to do.
Please help!! it would be much appreciated!!