T-Mobile Model A1533 (GSM) iPhone 5S is it unlocked? Will work with AT&T?
I wanted a non-subsidized phone to use on AT&T so I ordered the iPhone 5s from T-mobile with no contract. Howveer unlike ordering the 5c it doesn't call it sim-free. It does state When you travel internationally, you can use a nano-SIM card for iPhone 5s from a local GSM carrier. Which makes me think it has to be unlocked and I could use my AT&T sim in it as it has all the supported bands. Has anyone tried this yet?