What if Apple 6 receives the SMS from 10086777 and there is no service?

IPhone6s does not have the following service solutions:

1. Click "Operator" in the "Settings" interface of the mobile phone to modify it again and change it to "Automatic";

2. Turn the airplane mode on and off. In the iPhone6s, slide up at the bottom of the screen to open the shortcut panel, then turn on the flight mode, and wait for 5 seconds to turn off the flight mode;

4. Restart the iPhone6s, press the power off button in the mobile phone, then slide the screen to close the iPhone6s, and then restart the mobile phone;

5. Take out the SIM card and verify whether it is a valid SIM card made by the operator, then check whether the taken SIM card is damaged, worn or modified, clean the contact points with an eraser and insert it again;

6. Update and upgrade the iPhone6s, connect the iPhone6s to iTunes, and then upgrade the device system to the latest IOS system through iTunes, or enter Settings-General-Software Update to update and upgrade the iPhone6s.

The above five methods can be tested in turn and finally solve the problem.