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Replace SIM to Maintain Service

The Sprint LTE network has shut down. Updating your T-Mobile SIM is fast, easy, and FREE with no change to your price, plan, or data.

Got Questions?

If you received a T-Mobile SIM in the packaging shown below, please follow the enclosed instructions or visit www.sprint.com/sim to activate.

If you need additional support, visit a T-Mobile store, chat with us online, or call us at 888-211-4727 (or dial *2). We’ll help you through the process.

If you don’t have a T-Mobile SIM, you can order a free SIM.

I received a T-Mobile SIM with my phone order. What do I do?

Please contact us before inserting the T-Mobile SIM or carefully follow the instructions on Sprint.com/SIM. If you’re upgrading your device you can go to sprint.com and follow the Device Swap flow.

  • If you added a new line, go to sprint.com and follow the SIM Swap flow.
  • If you need assistance, please visit a T-Mobile store, chat with us online, or call us at 888-211-4727 (or dial *2) to help you through the process.

Follow these steps to prepare your device(s) and voicemail.

  1. Update your software/firmware.
  2. Back up your device. 
  3. If you have a smartwatch (Apple Watch, Galaxy Watch etc.) then have it with you so it can be paired with your phone.
  4. Carefully follow the instructions on Sprint.com/SIM

We can also help you through these steps if you visit a T-Mobile Store, or chat with us online, or call us at 888-211-4727 (or dial *2).

Get Help When You Need It

We have dedicated Customer Care ready to help you swap your SIM card and stay connected.

T-Mobile for Business customer? Call 800-927-2199