Hi,
There might be certain apps/programs that cause the crackling sound. Were you able to determine the area where the noise comes from? Also, you might want to run the
Surface Diagnostic Toolkit, see if it helps. The diagnosis may take 15 minutes or less, but can take an hour or longer and depending on your internet connection speed and the repairs that the tool needs to do to fix the problems.
Click here to run the Surface Diagnostic Toolkit.
If you're in the US, we recommend that you go to the nearest physical retail Microsoft Store and have your Surface device checked by our technician. It's the best way we can hear the crack/pop sound, and ensure that the replacement unit doesn't have the
same issue. You might still be under the 90 day refurb replacement warranty so you might want to consider getting another replacement. You can also contact our
Global Support for assistance.
Let us know if you have any other concerns.
Regards.