why wont my iphone vibrate?

Check:

Settings → Sounds → Vibrate on Ring = ON

Settings → Sounds → Vibrate on Silent = ON

Settings → Sounds → Ringtone → Vibration → Alert (Default)

Settings → Sounds → Text Tone → Vibration → Staccato (Default)

Settings → General → Accessibility → Vibration → Vibration = ON

Me too. It happened after one of the updates earlier this year. I keep waiting for an update to undo this but all updates lately are to fix stupid X. I’v been happy with 6 plus. And only reason i should need to buy a new phone is to leave Apple because they are not supporting older users. Just new users. I really hope I’m not in that position.

It appears 11.2.1 RESET the:

==> Settings\General\Accessibility\Vibration setting to OFF (Set it back to ON)

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This switch seems to act as a master switch for vibration essentially turning vibrate off no matter what other settings you try such as 'vibrate on ring' or 'vibrate on silent'

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Try this before all the other sites tell you to try so many other things including RESETTING your phone which is totally not necessary and a waate of time plus it will cost you time updating your settings back to the way you want.

My iPhone 6s has stopped vibrating. All the vibration setting are turned on but it still won't vibrate on silent or on ring. What do i do?

I’m having the same issue and tried this and nothing worked. What now?