I recently got an iPhone 4 from a friend and the vibration works for everything except SMS. It vibrates when I get a call, from facebook and when I get mail. Does anyone know how to fix this? It was working fine yesterday but today it's not vibrating.
Is it jail broke ? I would try a restore in iTunes and restore from back up if issue still there then restore again but don't use ur backup and see what it does if that don't work i would take it into apple