What is wrong with my iPhone 3GS?
Hi, I recently bought a broken iPhone 3Gs which doesn't turn on. Thinking the dock connector was broken, I replaced it, and of course, it still doesn't work. I've plugged it in overnight, and it doesn't even feel warm. It isn't water damaged, and I've tried to reset it while plugged in to the computer, and A/C. I can't get it into DFU mode, as it isn't even detect by the computer in the first place. Is the dock connector, battery, or mainboard dead? Also, the screen and LCD are both cracked, if that matters.