Since the network providers like Verizon are a relatively unknown network technology (CDMA) instructed to Sprint mobile phones made over the last few years with a SIM slot, not being released to the SIM card of another network operator mobile phones using CDMA in the United States but also GSM when traveling outside of the United States. You have more options, but my favorite was the travel pass. Iphone 5 Icloud Unlock In Hardware. Since I need a new phone in the United States, I now buy the international version of the Samsung Galaxy S5 (G900F) on eBay, hoping I could use it both in the United States and in Europe. I see that this is an older post with comments coming back to 2013, but since they are also newer comments, I thought it might be worth adding some new information. The device must meet four requirements: There must be a T-Mobile device that is not reported as lost or stolen and linked to a good reputation account. Users can not request more than two mobile phones. The device will be unlocked in a year.