No icon for 3G, 4G, or LTE

If your device has signal bars but doesn't show a data connection icon beside the signal bars, it may not be connecting automatically. Let's find out why.


Follow steps below to troubleshoot if a device doesn't show a data icon (3G, 4G, or LTE). If you need help with steps on your device, visit the Devices page, select your device, and look under Help Topics.


Did you know?

  • Building construction can affect signal strength and connectivity. Move outdoors or to a window to check for improvements.
  • Your location in a building may also affect your connection. If you're in the basement, move up a floor or head outside to check for improvements.


Device has signal, but no data icon (3G, 4G, LTE)

  1. Check the signal indicators at the top of the screen:
    • It must show at least two signal bars. If fewer, your signal is too low for reliable data speeds. Check out Signal issues.
    • It must also show a data service icon (3G, 4G, or LTE). If it does, then you're connected to the data network, so follow No Internet for any problems instead.
  2. See the Coverage map to ensure your area has T-Mobile 3G, 4G, or LTE coverage.
  3. Restart the device. Restart your device regularly to reconnect to the network, especially after travelling.
  4. Turn off Wi-Fi to ensure you're using T-Mobile network data.
  5. Your device must support 3G, 4G, or LTE. (see your Devices "Tech Specs" page)
  6. Check the device settings:
    • "Data roaming" is turned on.  (see your Devices "Network, APN, and VoLTE" page.)
    • "Mobile data," "Data," or "Packet data" settings (whichever are available) are turned on. (see your Devices "Network, APN, and VoLTE" page.)
    • "Manual network mode" or "Network selection" is set to "Auto." (see your Devices "Network, APN, and VoLTE" page.)
    • Wi-Fi Calling preference is set to "Cellular preferred." (see your Devices "Wi-Fi Calling" page.)
  7. For Android devices:
    • Reset the device APNs to default. (see your Devices "Network, APN, and VoLTE" page.)
    • Wipe the cache partition. (see your Devices "Wipe cache partition" page.)
  8. For Apple iPhone:
  9. Update the device software to the latest version. Visit the Devices page for current versions and steps.
  10. Remove the battery, and re-insert it.
    • If the device doesn't have a removable battery, press and hold the power and volume down buttons for up to 15 seconds, until the device resets.
    • If you're unsure whether your device has a removable battery, open the Devices page to find your device's Device Details, Battery help.
  11. Turn on the device.
  12. If the problem continues, please contact us to reset your connection and look at the local network in more detail for you.



Related pages

No Internet or data (phones or tablets)

Signal issues / no service troubleshooting