If the keycap is loose but still attached to the laptop, it can often be fixed by pressing down on the keycap. If the keycap re-attaches, a snap while pressing the key down is heard. If this does not fix the issue, I suggest removing the key so it can be re-attached. Sometimes you need to see how the metal and plastic clip together. Acer Chromebook CB3-111-C670 Keyboard Key Replacement
Somethings at least you can try. How do I remove scratches on my flat screen T.V https://www.techwalla.com/articles/how-to-remove-a-scratch-from-a-flat-screen-tv If it is of a bright/stuck pixel, you might not have much luck. The only real solution is replacing the panel, and even then it would be one of the control boards causing issues.
Try resetting the speaker with the mute button and see if it fixes the issue: (1) Connect the speaker to power (2) Press and hold the Mute button for 10 seconds. The LEDs will flash briefly. (3) Press the Power button to turn the speaker back on If you are still getting the same LEDs illuminated, and can't get the system to power on properly after this reset, it could be a miscommunication between the LEDs and the battery.
Most computers and game consoles these days have a safety that will cause them to shut down in the event of overheating. If your PS4 shut down as of it was overheated, the thermal pads can possibly be the reason.
Black screen could be a sign of LCD damage. There is also a chance that your battery may be damaged and improper current flow is leading to phone turning off automatically. It is really easy to see battery status using a secret dialer code. Also try another cable and charger before a battery replacement. If you encountered the issue with a specific application, then it could be a problem with the software of your phone, try to uninstall or reinstall the apps.
The red battery light basically means that there is an issue with your alternator, your battery, or some other part of the charging system which could be as minor as cabling or as major as a computer malfunction. You can simply try with another charger and see how’s everything going.
You can try to recover your Google ID and password at the Google Account Recovery site. If unsuccessful, your only options are too Hard Reset the Tablet by going through its recovery mode or flash a new/existing firmware on top of what's already there to wipe out the screen lock settings. You'll need to find the brand and model of your Tablet and check manufacturer's site for the methods and downloads, if available.
If the problem was in the motherboard, the chip or something else, remove the cmos battery and do a hard reset will do nothing. Test to see if the laptop will bott up with these methods. https://www.minitool.com/data-recovery/fix-my-laptop-wont-turn-on-009.html
To check out your refund status, visit online Self Service. For eligible products, returns must be initiated within a maximum of 14 days from the date the product is received. Upon receipt of the returned product at the Apple Returns Center, the refund process will begin. Refund processing depends on the payment method used at the time of purchase. If the returned product remains in its original condition, the return will be processed within 3 business days in the form of bank transfer or refund by debit/credit card, depending on the payment method used at the time of purchase. To view all Apple sales and refund policies, please visit the link below. https://www.apple.com/kr/shop/help/retur... If you still have questions with the refund, you can also try to contact Apple. https://www.apple.com/kr/contact/
