Apple TV
Q: Mac (Retina 5K, 27-inch, Late 2015) when shut down goes into slumber mode and will not wake up
Mac (Retina 5K, 27-inch, Late 2015) when shut down often goes into slumber mode and will not wake up. I then have to switch it off from the off button. And sometimes goes into this coma mode when I switch the computer on.
Posted on Feb 21, 2016 1:30 AM
by dialabrain,Apple recommended
Mac App Store
Try resetting the SMC… Resetting the System Management Controller (SMC) on your Mac - Apple Support
If that doesn't work… Using Apple Diagnostics - Apple Support
Posted on Feb 22, 2016 12:38 AM