To start, here is what has happened thus far: A couple of months ago, I downgraded my PSP back to 1.5, then installed the 3.03 OE custom firmware, using the GTA:LCS exploit. This stage has been perfectly fine, and I've been using it for quite some time since, no problems. However, since it's been a couple of months, I had forgotten to remove the downgrading save from my memory stick before I went to play LCS. I realized this while it was trying to load the game, and it froze. Black screen, nothing happening. So, to turn it off, I pulled out the battery. Right now, I am able to access the recovery menu just fine, and do things in there. To attempt a recovery on my own, I have downloaded the 1.5 firmware, and placed it in ms0:/PSP/GAMES/RECOVERY, and attempted to launch it. When I do so, the screen goes black, the MS light blinks a few times, then about 20 seconds later, the PSP turns off. I turn it back on, the green light comes on, the MS light blinks, and it just stays on until I force it off via battery removal. Same thing happens both with and without a power cord attached. Now, my question is: Does anyone here have anything to suggest that coule help me to get it back up and running?