Handheld.Vibrate doesn't work in Unity2017.3.0f3

I am trying the vibrate method to do the cellphone android vibrates but nothing happens.

my cellphone is galaxy s7 with android 7.

Even I’ve tried these:
https://gist.github.com/andyrbacon/4ff08fcdf7ab0c023118874f5339bf7a

and

adding the vibrate permission.

I know there is another question here but nobody answered.

Can somebody help me?

I have the same problem. Works fine in Unity 5, but not 2017, someone knows how to use vibrate in 2017?