If you attempt to fix it yourself you void the warranty if they find out. If you can get the cover off above the keyboard you should be able to see if the screw is loose inside. If you can't see the area where the plug goes in you may need to take off the keyboard too. My cover pops off and then you unscrew to get to the inside. Dell keyboards are tricky. Don't try to pry it off. There are little thingamabobs at the top of it that you use a flat head screwdriver to hold in while the other hand pops it up. lol