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Is this the 'Big Sur' upgrade problems?
iMac 27″, macOS 10.12
Please try the troubleshooting steps in Startup Screens Troubleshooting Steps, I suspect it may be a hardware issue which requires that you bring the computer into your local Apple Authorized Service Provider. If you don't know of any in your area please use the link below:
Please try the troubleshooting steps in Startup Screens Troubleshooting Steps, I suspect it may be a hardware issue which requires that you bring the computer into your local Apple Authorized Service Provider. If you don't know of any in your area please use the link below:
My 27" iMac died and the black screen only showed flashing file icon with "?" and "support.apple.com/mac/startup". I keep rebooting it but it will not start. What is wrong? I do have backup external drive connected.
