Apple reads text messages in full screen without sound.

There is no sound when iphone receives SMS. It may be because the SMS of iPhone is set to no beep or the notification option is turned off. You can set the iphone SMS reminder by entering the settings, as shown below:

1, find the settings first.

2. Click the notification.

3. Click to enter SMS settings, as shown in the figure.

4. Set as shown in the figure.

5.Downslide should also be set in the options.

6. After the change is completed, you can see the reminder information and sound reminder on the top of the mobile phone.