Can I use LTE Internationally on my iPhone 5s？
I bought an unlocked iPhone 5s from At&t in US. Now I'm in Shanghai China and LTE will be soon available here. But I was informed by the at&t official website that the iPhone 5s you sell support only 4 LTE bands (2,4,5,17). So I want to know if it will support more LTE bands since it's unlocked. Thank you.