David and David explain how to fix the problem when your iPhone ringer keeps turning on and off. Most of the time, this is caused by a hardware issue related to the Ring / Silent switch.
Software problems can also cause ringer issues, so work through our troubleshooting steps before scheduling a repair or replacing your iPhone.
0:29 Clean The Ring / Silent Switch
1:08 Check Silence Unknown Callers
1:34 Check Blocked Contacts
1:48 Check Do Not Disturb
2:11 Check Ringer Volume In Sounds &…