OPPO R9 mobile phone can't receive SMS. What happened?

OPPO R9 mobile phone can't receive short messages, which is caused by occasional errors in the mobile phone network, and can be solved by the following methods:

1. Turn off the OPPO R9 phone and restart it to see if you can receive the SMS.

2. Restore all settings of the mobile phone, and enter Settings-More Settings-Restore Factory Settings-Restore all settings.

1. Take OPPO phone R9 as an example, find the "Settings" icon selected in the red box at the lower right, and click to enter the next step.

2. After entering the phone settings interface, find the "More Settings" option selected in the red box, and click to enter the next step.

3. In the phone more settings interface, find "Restore factory settings" selected in the red box, and click Enter.

4. You can choose to restore all data or clear all data according to your personal needs, and click "Restore all settings" to enter the next step.

5. Finally, click the reset button, and the phone will be restored to the factory settings.

Third, if the above methods can't solve the problem, you can take your mobile phone and warranty card to the official repair center of OPPO mobile phone for inspection and maintenance.