hi i bought the Note 2 back in november, and for some reason my phone beens acting up in the last couple of weeks. The signal keeps leaving when i make a call, the signal leaves and comes back. i restored it like 3 times no work, got a new phone number still problems, i went to the official place they fix phones. (If you live by Orlando, FL its in altamonte springs) and they said it was good but i still have the problem. Was the new updat messed up the phone? or what else could be the problem. (If this been asked already in sorry and im pretty mad) thank you it in ATT btw.