My Iphone won't vibrate when recieving text messages?

How to I make my phone vibrate when receiving text messages? I want to be able to have my phone on silent in class but I still want to know when I get a text message. Have the vibration and everything else on. It still doesn't vibrate. I hate this so much! It plays sounds/music but that's it.

Added (1). The volume is up high… Still nothing

On the left side of you iPhone, above the volume up button, there's a switch. Toggle that switch and see if that helps.

I have an iPhone 4s. I had the same prob awhile back. Go to or settings then sounds then text tone & change it to something else. Make sure vibrate is on & exit out of settings. It worked for me it should work for you

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