Where ever you took the car to get the AC repaired should be responsible for fixing your car back to the same way you dropped if off. They probably damaged something in the car that's preventing it from starting. If its an AC job then you didnt have to do timing nor valve since they have no business messing with those parts for an AC job. There are many reasons why the car won’t start and you can start by getting the car diagnosed with a scanner. Could be a bad sensor like crank sensor or they caused a short in the car while working on the AC with battery still hooked up. Hopefully they did not short out your PCM.
You can't always see bad components. You would have to take the TV to a shop to get fixed. The boards have to be tested to make sure they are all working. I had a Samsung smart TV and drove me crazy. Had an issue just like yours but it only shut off when you change channels or when it goes dark between adds and it turned out to be the backlight strip had couple burnt LEDs. The boards in the TV have a chart with pins and voltage that can be used to test them but again you need to know what you're doing and how to use a multimeter. If the power supply is not providing adequate voltage, it will cycle on and off. If the main board has issues, it will cycle on and off. Could be any of those boards.
Make sure all the screws are removed. You also need to remove the power cable. I’ve never worked on this TV before but a lot of them share the same features. Maybe your TV is like this version: https://youtu.be/2WtDCYjp2kg
Very much possible. But based on my research it will cost you just as much as buying a working used monitor just like it off eBay. You would need a donor monitor or the cable by itself and tools. Here is the link to the disassembly. https://the-eye.eu/public/Books/iFixIt%20Guides/Appl...
You may not find an LCD for this watch and will have to resort to replacing the whole unit. Can find a pre-owned one online for under $$200. You can always see if a repair center can have it done for you since the parts are not available to the public. https://my.garmin.com/rma/en-US/repair/repairLanding
You can actually clone your hard drive to a new one without hassles. You would need an external hard drive kit and the new drive. The disk utility can be used to do this or Carbon Copy Cloner. This software would probably give you more options than disk utility. Now the only part I don’t know about is the windows partition. I have never cloned a macbook with a windows partition but I believe it should work. There is a guide here on how to do this using disk utility: How to Clone an Existing Drive
If you dropped your phone then that can mean the screen is damaged. You won’t be able to see the damage by just looking at the screen. The LCD connectors are secured in the phone with brackets so they don’t pop out. Unless it was repaired before and those brackets were never put back in place. I would recommend taking to a shop or if you’re handy you can open the phone and check for issues and if there are not any then you should first try to replace the screen.