How do I switch vibrate on when my phone rings or I receive messages? I noticed my last phone had stopped try to fix the issue but nothing, I've just upgraded to This is one of those iPhone features more people should know about! You can set a specific contact(s) to ring through even when your phone is on Silent or in Focus mode. I found the best fixes to stop random vibrations on your iPhone and Android My iPhone is Not Ringing or Making Sounds with Inbound Messages Suddenly, Help!