Signal issues or device has no service

Troubleshoot issues with not receiving any bars of signal or having "no service" on your phone. These problems can be related to to a lack of coverage, network outage, device settings, or account setup.


To fix this issue:


  1. Check the device settings: (If you need help, look up the instructions for your phone in Devices)
    • Airplane mode is turned off.
    • Data roaming is turned on.
    • Wi-Fi Calling preference is set to "Cellular preferred."
    • Network mode is set to "Auto."
    • Your phone has the latest software version.
    • Your SIM card is inserted correctly in the device.
  2. Open the Coverage Map, and check that the address is within T-Mobile 3G, 4G, or 4G LTE coverage.
  3. Open My T-Mobile, and log in to check that your line is active (or for prepaid lines, has a balance).
  4. Turn off your device.
  5. Wait five seconds, and turn on your device again.
  6. Remove any cases or covers from the device.
  7. Check for signal.
  8. If the phone shows signal bars but does not call, text, or connect to Internet, then look into:
  9. If the phone still shows no signal bars or shows a "no service" error, contact us.