I bought a 2.71 with TA-82 motherboard. Got a copy of unpatched GTA: LCS and proceeded to downgrade by using downgrader 3.03. Downgraded successfully but noticed an odd thing, my PSP sometimes will turn its screen off when I start homebrew emulators and everytime I try to access Recovery Screen. The solution I am using is to plug in the power charger and leave it on for 5 sec, and then unplug. The LCD magically turns back on. Does anyone else have this weird problem and possible cause and solution?