You can open the TV if possible and check for any blown capacitors. If you happen to find any, make sure to mark the voltages for each cap that has burst and purchase new capacitors. Desolder the old caps and replace them with new ones. There is a very good chance that if you find blown caps that they could be the problem. Hopefully this helps!
If it is sudden like it is jolting, you may have a faulty throttle position sensor (TPS). Most of the time it will show a check engine light if the tps has fully failed, however if it is just beginning to fail it may not show a check engine light. I would bring it to a mechanic and have them test it. hope this helps!
I can’t guarantee that you will keep your water resistance, however you can use a type of rubber sealant/cement. There is a type of rubber water resistant sealant that people use for repairing fish tanks that is water resistant up to a certain point. And since it is made of silicone you will still be able to press the button without any issues. You should be able to use a toothpick to apply it to the button. I’ll leave a link to a sealant that you may be able to use! Hope this helps! Link: https://www.amazon.com/Aqueon-Silicone-Sealant-10-ounce-Clear/dp/B0002ASD34
You can attempt to remedy the problem by holding the power button for 10 seconds on startup. That should do a clean power up and clear any cache (temporary) files from the hard drive that might have gone bad. Let me know what happens.
If you don't mind a new look for your switch, than yes! Amazon has a couple new replacement pieces that come in different colors for the switch and joy cons. The link I've provided below is a clear variant. But they also come in other colors and combinations. Link: https://www.amazon.com/Replacement-Housing-Nintendo-Switch-Clear/dp/B075SLYN2J
The reason your iPhone is "rebooting" is something which is known as a "respring" these are not a reboot per say and do not completely reboot your device. They simply reboot the springboard of the OS. Think of it as restarting windows explorer on Windows, or Finder on MacOS. These types of things happen with say a glitch in the OS that needs to be fixed. But in iOS's case. They are often caused by bugs in the operating system.
The adhesive ring in the Apple Watches, is there for cushion on the display with the 3D Touch sensor. That, and the other adhesive ring around the outer most part of the display is there for water resistance. But it is safe to say that if you replace the screen, your watch won't likely be water resistant anymore..
It could simply be that the camera's "lego style" connector inside of the phone came loose. Therefore not producing a signal as there would be no camera installed. Disassemble the phone and reconnect it. If not that try using a magnifying glass or something else to look into the back of the camera. Make sure there is no debris in there, if so you should also attempt to disassemble the phone and clean it out.
With older iPhone's especially the 3g, and 3gs models. They tend to have very poor cellular and WiFi connections even if you were say right next to the router. The grey lines you see, is the maps app struggling to load up the map preview. Also remember that if you were to do a satellite image, then it would take even longer to load. Give it some time to figure everything out and it should work just fine!
You are better off waiting for the new adhesive to arrive. It is not compatible with the iPhone 7's. Though I feel as though I should also add, even though you are putting a new rubber seal on the housing of the phone. You may not retain your water resistance. Therefore I wouldn't attempt to wash it off or use in the pool or shower.
