Since my update I am experiencing no incoming or outgoing phone calls at times and messages about emergency calls only. I would post a link to the full thread but apparently you must have 10 posts in order to post a link. (guys I get the reason for doing that but you should write an exception for links on the site!). Basically my network is dropping in and out. My wife has the same Note 3 and is on version 4.4.2 and her phone is fine. I have changed the sim and restored back to factory but I still am seeing periodic issues. I will dial voicemail or someone else it looks like it is trying to dial but no ringing and it just kills it after a bit.