If your device is still incompatible after unlocking, consider a trade-in and upgrade to a T-Mobile phone or tablet. Youll ...

Previously, it was possible to avoid these charges by placing an order online ... as well as prepaid activation and upgrades. While it’s not particularly surprising that T-Mobile now has ...

How to activate your AT&T prepaid card After you install your SIM card or download your eSIM by scanning the QR code, AT&T sends a text message asking you to follow a link to activate your SIM.