How To Activate a Phone on T-Mobile

What is a Phone?

A mobile phone is a portable telephone that can make and receive calls over a radio frequency link while the user moves within a telephone service area, as opposed to a fixed-location phone.

How To Activate a Phone on T-Mobile

  1. Log in to or the T-Mobile app.
    • In the T-Mobile app, select SHOP, and then Add a line.
    • On select Add a person or device to my account.
  2. Select your device.
  3. Select the device color, memory variant, and pricing option, then select Add to a new line.
  4. Make or review plan selections and select Add a new line.
  5. Select Yes, I want to trade in a device if you would like to trade in a device. Otherwise, select No thanks, and skip trade-in.
  6. Enter the trade-in device information, to find it, dial *#06# to get your device IMEI, or find it in your device’s ‘About’ settings, then select Continue.
  7. Provide information on the condition of your trade-in, then select Continue.
  8. Select Trade in this phone.
  9. Choose Continue or No, I’ll take my chances to opt out of insurance.
  10. Confirm your order details and pricing, then select Continue to Shipping.
  11. Select your shipping method and review the address section. Edit the address if necessary, then select Continue to payment. A signature requirement is added to high-value orders to help protect against theft, some shipments may require a signature upon delivery. 
  12. Enter your payment details and select the Customer Agreement to confirm consent to the T-Mobile Terms and Conditions, then select Accept & Continue.
  13. Sign your EIP Equipment Installment Plan agreement if you are financing your device with T-Mobile.
  14. Select Submit order.

How can I activate my T Mobile SIM?

Please call 1-844-740-2981 to activate your SIM on T-Mobile’s 4G LTE Network.

What is the activation code for T Mobile?

Charge your new phone. Be sure to keep the box. To get your activation code, you can either dial *#06# or find it on the box.

How much is the activation fee for T Mobile?


T-Mobile’s $35 activation fee will soon apply to almost every device transaction. It will prevent people from avoiding the fee by using the carrier’s online system for upgrades and activations, as reported earlier Monday by T-Mo Report citing internal company documents, some of which were posted on Reddit.

How long does it take to activate T-Mobile?

Typically, you’ll be able to use the device within a few minutes. However, it may take up to 24 hours. My device activation failed.