I bought a Tab 2 with verizon LTE and have been using my unlimited data sim. I am a heavy user I have 3 LTE devices now, my rooted thunderbotl, ipad3 and Tab 2. I've been using it for a few days working great with a reliable 4G connection. Today when I turned it on I noticed verizon was downloading a carrier update automatically and I didn't even get the chance to deny it (I always ignore them on my ipad and my tbolt is rooted so I guess they dont send them). Well now my vzw 4g LTE connection is total crap.