I have had the Note 3 for awhile and in general I love it, however since the KitKat upgrade, I no longer have cell service in my office. I have placed my SIM card in my iPhone and it can make calls all day long from my office. Put the SIM back in the Note 3 and when I try to make a call I get the No service error. (Calls made to my cell while in the office go straight to voicemail) I have tried rebooting, removing and re-inserting the SIM, and even a factory reset. No dice. Anyone else?