What should I do if I can't send the iPhone6s SMS?

1. Unlock the iphone6s phone, open the home screen page and open the settings.

2. After entering the settings, find the general function.

3. Select Restore in the menu bar of general functions.

4. Enter the detailed options list of restore and select Restore Network Settings.

5. Enter a 6-digit password according to the system requirements to authorize the restoration of network settings.

6. Wait for the network settings to be restored, press and hold the power button on the side of the iphone6s to turn it off and restart.

7. After restoring the network settings and restarting the iphone6s, open the application SMS.

8. Enter the application SMS details page and select any SMS.

9. Successfully send SMS, and successfully solve the release problem of iphone6s SMS.