HP India — New hp laptop camera / webcam device not working

Address:

Chandigarh

Hi,
I got a new HP Laptop, my Camera App was not working with error Msg camera not found.I reported to Hp Whatsapps Support, who said webcam part will be replaced by new one gave case ID [protected]
for technician visit.
Technnician came didnt changed the new webcam part and said i will update BIOS and it will work,
Till today despite my request to HP Customer Care and their Service channel partner SYSNet Technologies the webcam is not working showing the same Error, camera not found. It shows the professional negligence in services by such big brand company when it comes to customer care under warranty.
I request to urgent help in solving this issue and my professional work being affected due to no working of camera application and inconvenience being caused to me .
Thanks,
Regards.
Har Pratap Singh
thanks