I have this problem that which my psp seems to be unable to detect a battery in it and refuses to start unless i plug in the a/c charger. The battery works fine in other psp and a repair shop checked out and replaced my power board for the psp. For a while it worked and it has re-occurred again. It's not due to the pins not touching or loose connection as the connection looks ok. So i wonder if anyone has this problem?
Oh yes and my psp is on 3.10 OE-A (trying to recovery to 1.50 and see if this problem persists but because there's a battery check for the recovery i can't recover to 1.50. Or is there anyway to recover the psp to 1.50v without going through the battery level check?)