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Activate your new SIM card

Got a T-Mobile SIM you want to swap for one already on your line? It’s easy.

  1. Charge your new phone. Be sure to keep the box.
  2. Moving to the T-Mobile network? Back up and transfer your content. Go to and follow the steps in our how-to guides. Want more help? Go to to talk to a Tech Expert.
  3. Sign into My Sprint. If you don’t have an account, one must be created.
  4. Please note: Some services connected to your current device may not transfer to your new SIM. You may need to take action to re-establish those services after you finish activation. 
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