Hey, Yesterday I dropped my 3GS, the phone rebooted and when it turned on, I had no audio, the volume buttons would not work. I turned on the Assistive touch and the audio buttons started working. Everything seemed to be OK again, all buttons working fine, but the problem is that when the phone goes into deep sleep (sleep for several minutes), it will not wake up anymore, unless I connect it to a power source which turns the screen on and then I can use it fine. All notifications and calls wake up the phone fine. If I quickly tap the home button, it'll sleep and wake up, but if I wait, it won't. It won't boot up from a shut down, unless I connect it to the power source. So basically once the phone is not used, it falls into coma. Anybody know what it could be? All buttons work, I checked all ribbons from the screen to the phone and they're fine too.