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AT&T S3 KitKat update problems
So Wednesday I did the update, and noticed within a few days I was having battery charging issues, Bluetooth connectivity, lagging screen and a few apps were force closing. After a lot of research and not wanting to do a factory reset, I found the solution. You need to wipe the cache partition. You need to go into system recovery to do this. Shut the phone down completely and wait a minute or two. Press and hold the volume up rocker, power button and home screen button simultaneously and release all at the same time when the Samsung logo appears ( about 2-3seconds). You will boot into recovery mode. Use the volume down key to highlight the "wipe cache partition" and then press the power button to initiate. It should automatically highlight "reboot system now" after it does its job. Press power button and it will reboot the system
From what I've been reading many suggest a factory reset after the update. I figured I'd give it a try this way, instead of spending a few hours reloading apps and configuring the system to my liking.
This worked like a charm and the phone is as snappy as the day I got it with all the above problems gone! The Bluetooth especially is working much ,much better.
If anyone has had any problems with the update and tried this method to resolve them let us know.