There are several things you may consider trying when your phone is not receiving software updates:

1. Check Settings > Software Update > tap on the Download and install option to check for any available updates.
2. Ensure your device is connected to a trusted Wi-Fi network and has adequate battery life.
3. Restart your phone and try the update again.
4. If there are no available updates, you may have to wait until there is one or contact your mobile provider for further assistance.