Us T Mobile locked activation policy

Troubleshoot no signal or “no service” errors Restart your device and check for signal bars . Change Wi-Fi Calling preferences to Cellular Preferred or Cellular Only to prevent Wi-Fi Calling issues from interfering with the signal. Turn off Wi-Fi to make sure you’re using T-Mobile network.

Switch 2G / 4G / 5G

Check with your carrier to make sure you have the correct data plan . Also, make sure you are using the SIM card that came with your phone or a 5G compatible SIM provided by your carrier. Older SIM cards may not be compatible with 5G plans. You can check Network mode to make sure that your phone has 5G enabled.

5G for nearly everyone – within six years, the new T‑Mobile will provide 5G to 99% of the U.S. population, including rural America .