Hello!
I have a Late 2013 nMP bought in early 2014 which originally came with OS X 10.9 Mavericks but was upgraded to OS X 10.10 Yosemite.
I've recently upgraded to macOS Sierra and am experiencing some strange behaviour on startup where the screen has turned bright purple until I get to the login screen where it goes back to normal.
The nMP is connected via HDMI to HDMI to an Asus 27" 1080p external monitor. I have tried PRAM and SMC resets using different cables, ports, monitors and...
Strange Startup Issue Since macOS Sierra Upgrade
I have a Late 2013 nMP bought in early 2014 which originally came with OS X 10.9 Mavericks but was upgraded to OS X 10.10 Yosemite.
I've recently upgraded to macOS Sierra and am experiencing some strange behaviour on startup where the screen has turned bright purple until I get to the login screen where it goes back to normal.
The nMP is connected via HDMI to HDMI to an Asus 27" 1080p external monitor. I have tried PRAM and SMC resets using different cables, ports, monitors and...
Strange Startup Issue Since macOS Sierra Upgrade