Chosen Solution
Hello, I put my iMac in sleep mode before I went to bed and in the morning when I logged in, I tried to open the App Store to make an update but the Mac Frozen. After I forced shutdown the Mac, and when I tried to power on again it showed me the Circle with a line through it and couldn’t boot into the operating system. I pressed Command + R to enter Recovery mode to reinstall the operating system but I realized that instead of a 3 TB Fusion disk I had it showed me only one Flash Storage of 128gb. Is there anything I can do? Or the Hard Drive is dead?
Here’s how to install a new hard drive and OWC heat sensor: iMac Intel 27" Retina 5K Display Hard Drive Replacement
Sadly, your HDD has died. Do you still have a warranty? US 1 year,& EU 2 years. You still might have AppleCare+ service contract support. Otherwise you’ll need to take it on (of get to someone who can do it)
