Learn how to troubleshoot data connection problems. When you use a high-speed capable device in a 3G, 4G, or 4G LTE area, the device automatically scans for the best available network. The device displays 3G, 4G, H or LTE next to the signal bars when successfully registered on a 3G, 4G, or 4G LTE network.
To fix this issue:
- Check the following:
- Turn off your device.
- Remove and then re-insert the battery.
- Turn the device back on.
- If you cannot connect to 3G/4G/LTE, perform a manual network selection using your device's how tos.
- If possible, see if another T-Mobile 3G, 4G, or 4G LTE device in the area is working properly.
- If the problem continues, please contact us for additional troubleshooting.