Chosen Solution
The vibrator on my iphone 5 not working I tried a different motherboards - then it worked. What can be wrong with my motherboard? can I clean something?
You sure it isn’t a contact issue with the vibrator itself to the power button + volume + vibrate connector assembly? As shown here:
You might need to just lower the two golden prongs more on the vibrator for better contact to the connection points on that assembly I specified above.
