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I was watching Louis Rossman, and he said the problem wasn’t the graphics chip.
He said it was a defective capacitor right NEXT to the Graphics chip.
He demonstrated how to replace the capacitor.
And he explained that since every attempt to “reball” the graphics chip inevitably heated up the capacitor, that’s why the computer would resume working for a while.
I was planning to get the heated tweezers and try this.
What do you think? Even if I get a 2016 model, that bad chip will still gnaw at me.