Hi @harmansand19435
Here's an image the vibrate motor trouble shooting flowchart from the service manual that may help.
There's also an image, one zoomed in and one normal size of the board layout showing where the components mentioned in the flowchart are located.
It the troubleshooting tests prove that the hardware is OK, then you may have to reset the phone back to default using a ''factory restore'' to see if it is a software problem. ***Note:*** ''Be aware that doing this will erase all your personal data and downloaded apps, so ***backup*** the phone to the cloud or a computer ***before*** you do the ***restore.***''
[image|3078214]
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[image|3078217]
(click on image)