Hi, I’m sorry this had been such a trial for you! I use flysky too and haven’t run into this problem before but my mind initially went it the contrast setting page. Can you post a picture of what it looks like? If you want to check the brightness here are the key stokes to do it.
From turning on thescreen looks like this
Press the ok button and you’ll get to this page
System should be selected automatically so press ok again and this is what the system menu looks like
Press down 9 times and you’ll get to the brightness setting
Select ok to adjust field. If it works you’ll want to hold down cancel( seriously) to save the settings.
If instead of going 9 beeps down you go 12, you are at the factory reset.
Seeing as how it’s already a frustrating experience I can’t see any down side to resetting the whole thing.
I’m dealing with my own issues with my tx and hope to resolve them too. It’s such a pain when all you wan to do is fly!
good luck, brother! Let us know how it goes!
(just saw your video, looks like brightness isn’t the issue 😕)