The display on my 2024 M3 MacBook Air is no longer working properly (see attachment). I can still work using an external monitor but the interior display is completely on the fritz.

I want to take the machine into the Apple Store to see what a new video card or screen would cost, but I would want to format the main ssd first because I do online banking on this machine and have other relatively sensitive information and I did not have the drive encrypted. Because the drivers for the...

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