I've had my Macbook 12" Retina 2015 for over a year (bought it in 2016), and the past 2 weeks, it's been shutting off randomly, and starting back up. Then, this past weekend, I tried starting it up, and nothing worked. I plugged it in, nothing, no sounds, nothing! So I went and bought a new cable, and charger thinking that would solve it. Nope. Then I contacted Apple Support, tried resetting the SMC and others, still not working. I then brought my book into the Genius Bar, and they tried 4 chargers, and 4 different cables. They said it may be the USB-C port, if not that, possibly the logic board. Now, my AppleCare expired back in June 2017. So I'm basically SOL. Anyone have experience where this situation occurred? What'd you do to fix it? I don't have $800 to spend to have the logic board/USB-C fixed (as that was the estimate I was given by Apple). I might as well just take that and buy a new Macbook.