Why does the fingerprint scanner buzz on my laptop when I put on headphones?

Question

Iron

I have a Dell Latitude 6430u laptop and it has a fingerprint scanner on the bottom right. If you sit in the headphones, you can hear a buzz, but if you put your finger on the scanner, then it disappears. Why is this happening and how can this be fixed?

Answer 1

You have a gundezh source next to your laptop, remove the power supply of the laptop away, remove the lamp away, remove cheap speakers, they have a switching power supply that costs 3 kopecks.
Alternatively, in the socket or in the filter, change the option to turn on the power supply socket of the laptop by turning it 180 degrees.
The filter can give a tip, try without a filter.
Buy scotch tape on the edge and fix a rarely used finger, for example, the little finger of your left hand, directly to the scanner. A little awkward to write, but worth it!
No time to explain, stick it with tape!
If it’s completely edge, buy speakers and sit in the speakers, give headphones, for example, to me!
No time to explain, give me headphones!