Answer to "Why is there white color strike in the left part of the screen?"1. Turn off your computer 2. Make sure you have connected the power cable 3. Turn on your notebook, as it is starting press the F10 button repeatedly Once you are in the BIOS, if the lines are still present, it is likely a hardware failure
Answer to "Battery drains SIGNIFICANTLY after shut down"(1) Click Go > Utilities and open the Activity Monitor app. (2) Now click on the Energy Tab and Energy Impact header to view the apps and processes taking up the most power on your Mac. (3) Hope this helps.
Answer to "Can the adhesive strip that holds the screen on be replaced?"Yes it can here's a link for a tape or the actual adhesive for the screen https://www.google.com/url?sa=t&source=w...-Fused-Adhesive-Sticker-Phone-Repair/dp/B00BXYWXY8&ved=2ahUKEwj5joHSrN... Sony Xperia Z1 Compact Display Adhesive Strips