After the update, my network keeps dropping. Also my text messages are going whack. I start a text and the cursor jumps back to the beginning of the text, randomly. I have tried all the trouble shooting ideas online. I also took it to the Att store and they gave me a new sim. Nothing has helped. Ssamsung's only soultion is to send phone in, which leaves me without a phone since they don't provide a loaner. Att says ALOT of the same complaints are coming in, but samsung hasn't notified anyone. HELP!!