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Won't Boot - Black screen with a vibrate
This morning I noticed my home button wasn't working, so I rebooted the phone and it comes up with the AT&T screen and the Galaxy S screen. Then the screen goes black with the bar on top with the icons, it vibrates, and the screen goes off, then it happens again with the black screen with top bar and vibrate. It happens over and over, even after a battery pull and taking the SD card and SIM card out. It has Cognition 2.2beta on it which I put on weeks ago and I haven't done anything to it lately other than some apps from the Market. Any ideas how to fix this without restoring it completely? (me being smart hasn't backed my stuff up since I flashed Cog.