Hello, I bought a T-Mobile iphone 6 at an Apple store that is supposed to work on all carriers. It works fine with the sim card from AT&T and T-Mobile with full LTE data access. However, when I switch over to Verizon 2 days ago, I could not get any data from the phone. I have the 2 GB/month data and even though it says Verizon LTE at the top of the phone, I could not receive any data. I can text and make phone calls without any problem. I talked to the Verizon rep and they could not figure out why I cannot receive any data. Does anyone here know a solution to this? Thanks.