My S3 would not even take the update. It kept giving my the update notification and would download the update. But would not install it. I would get the "dead Android" screen and it would reboot. Tried to update about 2x/week. The other half was able to do the update on that other S3, but then the phone would always freeze and crash. Randomly reboot. We ended up just getting new phones. It was time to upgrade anyway. 4.3 was obviously not built for the S3. (At least that is what Sprint tech support told me.) I was told that the S3 was never supposed to receive the update.
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