Flickering Laptop Screen: How Screwed Am I?

Hardware
1

The screen on my Late-2013 15" Macbook Pro is flickering. Like this: https://www.dropbox.com/s/gooh8epnzp8t1ii/IMG_0160.MOV?dl=0

It was replaced in December 2018 because of the delaminating problem, but that warranty is long gone.

Any chance this is a software issue? So far I have: reset SMC & NVRAM, tried booting in safe mode, and tried forcing the integrated and discrete graphics card. Anything else before I decide this is now a permanent clamshell computer hooked up to an external monitor?

3

Try running Apple Hardware Diagnostics (or whatever it’s called) on it.

4

Despite the flickering happening while Hardware Diagnostics was running, the only message it gave me was that there “may be a problem with a storage device.” I’m guessing that’s Apple being grumpy about my aftermarket SSD.

On the bright side I haven’t seen it for a while now after all the restarts involved in running Hardware Diagnostics, so maybe I have a reprieve.