I prepped my iPhone 5s to be ready for the international SIM and that went fine, but when I was in Italy, I put in a SIM from Vodafone and the phone seemed like it wanted to totally reset. I wasn't quite ready for that (I had apps maps and books I wanted to use on the trip), so unfortunately I didn't go through with it. Has anyone else had this happen, or did it work for you? What sort of initialization screens do you get when you turn on the phone with the new SIM, or did it just turn on like usual and ask for your pin/thumbprint?
Have you successfully used an international SIM on a Ting iPhone?