Do Not Disturb - Sounds off and cannot hear incoming calls
Hi,
I bought an used iPhone 4, running 6.1.2. This happens everytime I turn on Do Not Disturb: when I turn it off, I cannot hear people who call me, although they can hear my voice; the keyboard sound is off, so is the email, the text message sounds and some other sounds.
The only way I can fix this is by erasing all content and settings and restore it in iTunes. I haven't tried to just restore it, without erasing all content and settings first. After I restore it, the iPhone is back
I'm sure this just happens after I use the Do Not Disturb function, so now I cannot use it.
Anyone withe same problem? Any ideas?
Thank you!
iPhone 4, iOS 6.1.2, 32GB