I also get "network unreachable" quite often even with full bars and 3g.
Sent from my ADR6400L using DroidForums
Sounds like a phone or SIM problem to me.
And no, warranty isn't transferable.
This thread has been Thunder struck!
If the phone is only two weeks old its till under factory warranty and Verizon will honor that. Doesnt matter if he bought it from Verizon or a friend.