Why won't my soft keys won't vibrate anymore?

[AC Question]

my soft keys won't vibrate anymore

I have turned haptic softkey feedback off and back on again, tried restarting the phone etc, and nothing happens. Galaxy s4

 

[B. Diddy]

Re: my soft keys won't vibrate anymore

Welcome to Android Central! Try booting into Recovery and wiping the cache partition: Reset: Samsung Galaxy S 4 | T-Mobile Support