I'm posting this to see if my fellow android forum users may be able to solve this problem. I received a replacement Thunderbolt and it worked for a week or so. After that I haven't seen 4G. We replaced the sim and still no luck. I see random data disconnects, and after the 3G OTA update the data disconnects we not as bad but it is still not bearable. Over the course of 2 moths I've spoke with 3 supervisors from the call center, opened up 4 trouble tickets, and haven't received one all back for all 4 tickets. Even went to the store for them to tell me to open another ticket. Anybody have similar problems? I live in the heart of Orlando, and commute to Tampa, Fort. Lauderdale and Miami regularly and my coworkers are able to receive 4G without a problem. I've been with Verizon for 11 years, and it seems like time is coming to an end... Thanks Guys!