If your cellular data is not working, then follow the below steps to troubleshoot:
- 
Make sure your cellular network is fully supported by Teracube. For example - here is the list of US carriers supported by Teracube phones. Feel free to search/ask on forums. 
- 
Check if Mobile Data is enabled 
 2.1 Either by pulling Quick settings down.
 2.2 OR Settings > Network & Internet > Mobile network > Mobile Data should be enabled.
- 
Reboot and try again. 
- 
Try a different supported SIM card if possible 
- 
Try the SIM card in the 2nd SIM card slot. 
- 
Reset just the Wifi and Cellular by going to Settings > System > Reset options > Reset Wi-Fi, mobile and Bluetooth. 
- 
Do a factory reset. 
- 
If still not working, then please write an email to support@myteracube.com with details on the above steps. 
