Hi there! Dealing with a stripped laptop cover screw can be tricky. Here’s a suggestion to help you out: (1) Rubber Band Method: Place a rubber band over the stripped screw head and press down firmly with your screwdriver. The rubber band can provide extra grip and traction to help turn the screw. If the small screw extractor didn't work, this method might offer a simple and effective solution. Good luck!

Hey, It sounds like your battery is degrading after five years. Here’s what you can do: (1) Replace the Battery: This is likely the issue. Buy a high-quality replacement from a reputable source like iFixit or well-reviewed sellers on Amazon. (2) Check Connections: Since you’ve opened the headphones before, make sure all cables and connections inside are secure. (3) Safety: Avoid cheap batteries to prevent safety risks. If you’re not comfortable doing this yourself, consider a professional repair service. Good luck!