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A friend’s MacBook Pro 15 inch Late 2013 randomly shuts down itself. I tried reinstalling the system after I found out that the error does not occur in recovery mode. But this did not solve the problem. The problem is also not reproducable by any interaction. There is no difference whether it is connected to the power supply or running on the battery. If you leave the MacBook powered off for some hours it may sometimes last over two hours before shuting down again. After the frist sudden shutdown the frequency of shutdown rises rapidly. Also the shutdown might not be triggered by overheating. I tried benchmarking while watching temps after the reinstall of the OS and it lasted over two hours. 5-10 minutes after I stopped and the tempreture dropped the problem occured again. My friend also sent the MacBook to Apple for a hardware test several times, but no problems were found yet. I’m thinking about replacing the logic board. Any opinion would be apprechiated. EDIT 01/03/2017 I have not noticed anything while booting and there have not been any video problems apart from the blackscreen when the sudden shutdown occurs. (I have found this: Exchange and Repair Extension Programs - MacBook Pro video issues But, it does not match my friend’s MacBook.) The built-in hardware diagnostic tool stats that everything is correct. Maybe I should start the MacBook in verbos mode and videotape the output? My friend will take the MacBook to an authorized service providor to have it taken apart, cleaned and the stained display replaced Apple StainGate Maybe they will find something…

Hi, I’ve had the same problem with mine. The crew at the Apple Store,, after several tests said that it could be the motherboard. I searched the internet and found the solution in this Random Shutdown on MacBook Pro I did this in June 2018, and my MacBook Pro works flawlessly since. FYI - The problem is faulty power chips on logic board! (FDMF6808 to be precise. Should be replaced with newer FDMF6708). We turned off one driver, that is for Ethernet via thunderbolt. Somehow it helps with our problem. It is possible, you don’t need that functionality, like me.

David Rojas posted a link ^ that absolutely had the solution for me. (I reposted the steps below). When I first started experiencing the problem, it felt like hardware, but logically it didn’t make sense since as others said, it didn’t happen while in recovery mode. But as the days rolled on … it seemed like the CPU was spiking rapidly and it was heating up rapidly and it seemed like it was going into thermal shutdown … I found a program that lets you control your fans by your own rules and with that I was able to keep it from shutting down unless it was under extreme load … so that made it feel like a hardware problem, so I did what most techs would do with an 8-year-old laptop … I replaced the thermal compound… but it didn’t fix it… Then I stumble in here and Mr. Rojas had the answer. Since links go down over time, I’m reposting the steps here that fixed this problem for me: Reboot into recovery mode holding down CMD+R after boot chime, then open Terminal. csrutil disable Reboot normally - open Terminal (If you have Catalina): sudo mount -uw / ←don’t forget the forward slash sudo cd /System/Library/Extensions sudo mv AppleThunderboltNHI.kext AppleThunderboltNHI.kext.BAK Reboot again into recovery mode and open Terminal csrutil enable Reboot one last time normally and you’re done!

Hello all, I struggled with my late 2013 Macbook pro shutting down and read all the forums and followed all the fixes I could find, all to no avail :( Here’s the fix I was enlightened to which saved me —a $10 cost but immediate solve of my computer crashing problems! Like magic! https://realmacmods.com/product/macbook-…

Type “syslog | grep shutdown” into terminal and post the results. I’ve experienced this before on a 2012 rMBP and it turned out to be bad memory, which resulted in a logic board replacement. See if you can run MemTest86 to confirm.

My Macbook Pro kept shutting down then would not powder on. I replaced my AC cord. They do wear out. If this works for you, check to see if you battery is charging this can take up to 3 hours.

https://realmacmods.com/product/macbook-… It is not a temp related issue. It is a core voltage issue.

I went for a repair and Apple fixed it on warranty ;-) Got a new logic board!

Under System Preferences > Security and Privacy > General > open the lock in the bottom left-hand corner, enter your admin password and then click Advanced. If you have “Log out after x minutes of inactivity” checked, either increase that number or uncheck that box.

Hi I am having the same problem. I have macbook pro retina early 2013 running Catalina 10.15.7. I tried to run sudomv/System/Library/Extensions/AppleThunderboltNHI.kext/System/Library/Extensions/AppleThunderboltNHI.kext.BAK it keeps saying command not found. any solutions?? please help