So I got my first Thunderbolt in May. The hotspot kept dropping, I took it to a Verizon store and got told it was a known issue and to wait for the update. Update comes and goes and it still is dropping. Verizon sent me a refurb, and I can receive calls, but no one can hear me speaking. Now they're sending me another one. How many times are they going to send me a refurb phone before its enough?