Réponse à : « Randomly Black Screens and powers down. »Reapplying thermal paste of the cpu helped in my case with the same machine for 100%
Réponse à : « Randomly shuts down when not connected to an external display. »Workaround: I have the same issue with my MacBook Pro 15 Mid 2014. The only way to use the MacBook without the shutdown problem is using an external display or a HDMI dummy plug like this: https://www.amazon.de/gp/product/B072PV6... It is a hardware defect on the logic board, probably the i7 Processor with intel Iris Graphics. Maybe its the smc circuit. On Windows, I thought, I had no problems. But I saw some times the display goes black for 1/10 of a second. So I believe, it is the defect of the Onboard Graphic. My Problem occurred, when I used dolphin Nintendo WII emulator, which leads to 100% CPU usage und the fan full power. I think, the MacBook went too hot and this caused the damage.