i was having troubles yesterday when i flashed a xmb theme but then it semi bricked and i was forced to put my old recource... but then it was still bricked so i used this guide
to get back to 3.40 oe-a... now today i put a new .cso and it wouldn't run so i go into recovery and disable use-no umd and when i exit the blue screen comes up saying my files are corrrupt and press o... i press O and restart the psp and it goes into the xmb... but when i go play the .cso it still a black screen..
i go into recovery AGAIN and the Use no umd thing is Enabled again... WTF~!??!?
it keeps happening..