Joycon random button presses

I just recently repaired a friends joy-con it has started to randomly press the home button does anyone have any ideas.

Also when I screw in this screw all the way the button’s don’t work but when it is out it works but then I have the random button presses

The only thing that comes to mind is to open it up, and clean that button with alcohol. As for buttons not working, which screw is causing issues, and which buttons are not working?

I actually figured it out about a hour after I asked.

Was it just a case of cleaning it, or did you need to do something else?

The case was not going on correctly so it just messed up everything. kind of wired but that is how I fixed.