My phone was vibrating until I did factory reset because the internal memory was full
The first time I did factory reset vibration worked for about 5 min then didn't so I used diagnostics>test and vibration didn't work in any test
then at the end of the day it worked
and this morning it didn't worked so I did factory reset again and vibration worked and I tested it through all diagnostics and now it isn't working
HIW TO FIX THIS PROBLEM
Thank you
