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How do I fix a black screen on my MAC
Follow the steps, at > https://support.apple.com/en-us/HT204267
Follow the steps, at > https://support.apple.com/en-us/HT204267
On a 10 year old iMac, I would strongly recommend replacing it with a new iMac. Your current machine is obsolete and finding parts for it will be difficult at best. You cannot upgrade the OS beyond HS 10.13.6 either. In short, it's time for a new iMac.
i have the same problem
Black screen on 10 yr old MAC
