Samsung Galaxy S4 — samsung 4.2 update last night

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Apr 17, 2014 1:55:19 AM via Website

I upgrade my phone last night and now the data notification toggle is gone and the outside of my screen flashes red every time i touch the screen. Plus i had trouble texting on facebook, it would not let me edit a post, the screen kept jumping. Plus my battery is running out much too soon.

Any suggestions on how to get the data notification back? I used to shut if off to ensure I didn't go over my limit. Sometimes I don't know when programs are running and wasting my data allowance.