What do I do if the data network does not work?

Please follow the below steps:
1. Reboot the phone and turn the data network on. Check whether this resolves the issue.
2. Gently take out the SIM card and insert it again, or change to another SIM card for testing.
3. Back up all data and restore the phone to factory settings.
If the issue persists, contact the Nothing Support Team for further assistance.