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Holy hell, that explains my situation perfectly. My trackpad becomes unresponsive after a few hours use, but works perfectly fine in the morning. The battery must be expanding and interfering with the trackpad/haptic engine...

Had the same issue on my last one. The touchpad worked fine, but I couldn't click, so had to use touch to click. Then one morning I found the mac with the lid popped up 2 cm. Turned out the battery had expanded and popped out the touchpad.

I have this exact problem, but mine is on a late 2014 mbpr. It's a shame... it's still a fantastic machine, and until there's a new MBP worth buying, I guess I'll spend the $$ to fix it.

I experienced something similar: Many of my keyboard keys don't work. I have to use external keyboards.

People say that it might be due to a swollen battery. Either way, Apple wants >$400 to replace.

2015 MBP

https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Retina+Disp...

you should stop using it as soon as you can, it's a fire hazard

It could also be that there’s dust getting inside your keys.