My brand new Thunderbolt would not connect to 3G outside of a 4G area. It also would not connect when I disabled 4G using the hidden system menu. I went to the Verizon store to get it looked at and after a system restore, and whatever they did on their end, the phone now connects to 3G. The interesting thing about this story is the Verizon Tech told me under no circumstance was I to change the Network Type setting to CDMA auto (PRL), that the phone does that automatically, and furthermore, it can mess up the phone and creates problems on the Verizon network? It should only be used for testing purposes and not to control battery usage. Hmmm... I don't see how my changing that setting can mess with their network, but any truth to it causing other issues with the phone?