My PSP 2000 was running perfectly with 6.60 Pro. I accidentally ran pro update, and since then nothing loads - not even UMDs!
PSP boots normally and shows the games in the ISO folder, but when trying to run them, screen goes black after the "PSP" vignette and nothing happens (it doesn't turn off, still on).
Then to mess things up a bit more, I flashed CFW 6.60 ME-1.8. Didn't help. I tried running Hellcat's Recovery Flasher, but it also doesn't load (not even through recovery mode).
If I take the memory card out, the UMD loads. Insert memory card, nothing loads anymore, but stuff in it can still be read.
I dunno what to do anymore, any ideas?