Question: Home button noise
I dropped my phone and now whenever I press the home button it makes a static like noise that is obviously wrong. What can I do to fix it?
Use AssistiveTouch on your iPhone, iPad, or iPod touch - Apple Support
Since most everything is closed and it requires repair there is not much you can do right now...except...you can install the Assistive Touch (Virtual) Home Button which takes very little getting used to and you will never need to use the mechanical one again. I think everyone should install it even if they don't use it cause one day the mechanical one will break...then what do they do ?
See the link above to turn it on...
You should also have Raise to Wake installed found in Display and Brightness Settings...