If the phone cannot connect to the mobile network, please refer to the following methods:
1. Please restart your phone. Restarting can fix connectivity issues by resetting network connections and clearing temporary glitches;
2. Turn the data switch off and on. This can refresh your network connection and resolve temporary issues;
3. Switch the access point name (APN) settings or reset them if necessary. Incorrect APN settings can prevent network connectivity;
4. Turn airplane mode on and off to reset network connections and refresh the phone's ability to connect to the network;
5. Ensure there are no unpaid bills or issues with your mobile service account that can restrict network access;
6. Verify if other phones on the same network can connect to ensure the issue is not with the network itself;
7. Make sure internet access has not been disabled in the phone’s data management settings;
8. Some third-party apps will disable network access. Review installed apps to identify any that can be interfering;
9. Backup your data and perform a factory reset if other methods fail.
If the issue persists, please take the phone to a local after-sales service center for further inspection.