We all hate that. But, if it's broken....
That's why you own several. Or a dozen. Run another while waiting on parts and/or repairing one or two....Lol.
YouTube Academy. Seriously. It's how I've learned to work on my home appliances, cars....you name it. Saved me a ton of money, so I can throw it all away on RCs. Lol.
Here's what I've learned and what I tell my friends. If you're having an issue with something, so has someone else. Google...