How do I back-out of 10.10.2 update?
Since the update I can no longer display when I plug in the HDMI port, causes al the screens to blink, appearing as if its swapping from one display to the others.
Please help
MacBook Pro (Retina, 15-inch, Late 2013)
Processor 2.3 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics NVIDIA GeForce GT 750M 2048 MB
MacBook
Pro, OS X Yosemite (10.10.2), Model A1398