Is alarm vibration suddenly broken in iOS 7? I have alarms set up in my iOS Clock app, with both "Vibrate on silent" and "Vibrate on ring" switches set to ON in the Settings app. For the last several months I've been relying on a silent audio file to create a vibrate-only alarm to wake me up. But this morning, it seemed to stop working — the alarm went off, but made no sound and did not vibrate. Only the screen lit up like usual.

I've tried deleting and re-creating the alarms, un-toggling and re-toggling the vibrate switches in Settings, trying alarms using the built-in ringtones, and rebooting the device, and nothing seems to make alarms vibrate again. As well, the state of Do Not Disturb mode has no effect (though it of course never has).

Even stranger, I also have some other iPhones to test, and they're all now inexplicably showing the same behavior.

Affected OSes:


iOS 7.0.2


Affected phones:


iPhone 4S
iPhone 5S


I've been using this standard alarm behavior for a long time, and suddenly it's not working without having performed an iOS update.

Any suggestions?
(Sorry making this an answer, I don't have enough points to comment yet)

This probably isn't your issue as you've recreated your alarms, but I can cause my phone (iPhone 4S, 7.0.3) to do only "one" vibration by creating conflicting alarms for the same time, one having the sound as "none" and the other to any random sound.

It took a bit of juggling, but I managed to have the sound alarm start first and then immediately the none alarm started and the sound and vibrations stopped.