you may need to purchase a new device from its store or get a compatible SIM card. As a new customer, you must pick a phone plan and set up your Metro by T-Mobile account. After you complete that ...

[Jason Gin] wanted to reuse the SIM card that came with a ZTE WF721 wireless terminal he got from AT&T, but as he expected, it was locked to the device. Unfortunately, the terminal has no function ...

Also, take a look at our pick of the best eSIM for Europe ... Supporting the same features as physical SIM cards, the Sim ...

[Nils Pipenbrinck] has been working on a very interesting problem. The SIM card in your cellphone talks to the contactless near-field communication (NFC) chip through a cool protocol that we’d ...