TOP SCREEN PART FOR MAC MID 2012 MAC
You have to run Disk Utility to confirm the same to fix your Mac grey screen. It's time to check if your hard drive has got any problems. If you are still looking in the face of desolate grayness, then let's look at other methods, don't worry yet. Swap a spare if you have got one to test it out, and then restart your Mac. After reconnecting all the peripherals and if there is a persistent Grey screen Startup, your keyboard or mouse could be the culprit. What you need to do following this realization is to shut your Mac down, reconnect your Mac's peripherals one at a time by testing which one has got a problem with your device, after every Startup, and getting rid of the angry peripheral that resorted to staying unresponsive. If you get the blue screen, then yes, it was a problem with one of the peripherals. Make sure you also disconnect any Ethernet cable, audio in or out cables, headphones, etcetera.
TOP SCREEN PART FOR MAC MID 2012 HOW TO
Part 2: How to Fix Grey Screen at Startup on Mac? There are no peculiar noises to detach the problem and make it easy for you to narrow the causes down, just Mac gray screen syndrome, to grate your nerves. Whatever it is, you and your Mac are stuck. At times, you can also see the Apple logo, a spinning gear, a spinning globe, or a prohibitory sign.
And you know there is a problem if it's a gray screen to say hello instead of a blue screen.
Usually, this is noted to appear right after one starts or restarts his/her Mac. Grey screen at Startup on Mac is commonly addressed as a gray screen problem because initially, the display would appear grey during the startup phase when the issue hit the device.
Did you know that what you see isn't a gray screen, as it could have risen initially from a black screen, i.e., a screen so black, there are chances you can mistake the display as being powered off? This is mostly relevant for Macs with built-in Retina displays, as these Retina iMac models don't have a power-on indicator. Sounds terrible when put that way, isn't it? It sounds awful because you've got no clue for a possible reason as it could be practically anything, and knowing Mac, the possibilities are endless. Now, Mac gray screen problems are frequent on many Q/A sites, primarily related to the kind of thing that welcomes you on a good sunny day in your office desktop version- the dreaded gray screen at Startup on Mac.