How does OPPOa37m adjust the ringtone and content display of SMS reminder?

Setting method of short message ringtone of OPPOa37m mobile phone;

Version 1 and ColorOS 3.0, enter settings-sound and vibration-information ringtone, and select ringtone;

2, ColorOS version, set-sound-information ringtone, select ringtone;

2. For ColorOS 1.0 version, set-sound-information ringtone and select ringtone.

1.OPPOa37m What is the reason why the mobile phone makes abnormal information receiving sound when receiving information?

When the mobile phone receives information, it emits abnormal information receiving sound because the mobile phone is currently in the information interface of the mobile phone, and receiving information ringtones in the information interface is a very short sound effect; In other interfaces, the information ringtone is the information ringtone set by the mobile phone.

Second, the reasons and solutions for the failure of OPPOa37m to send and receive short messages:

The failure of sending and receiving short messages is generally caused by the wrong number of the information center, the arrears of the number, the abnormal reception and forwarding of the network base station, and the failure of the mobile phone. You can refer to the following methods to see if you can solve it:

1, consult the phone bill balance of the mobile phone card to see if there is any arrears;

2. Correct the information center number, first check whether the mobile phone information center number is correct (compare it with similar local cards or consult the operator to confirm the message center number);

3. Compare and observe the changes of SIM card and different time periods;

4. Try to restore the factory settings of the backup data.