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Hello, Yesterday update my iMac, but something wrong with that.
iMac turns slow and then turned off . Now I can't start up. I have try recovery method (Command+R) but doesn't work.
Can you help me with this?
iMac 27″, macOS 10.15
Continue holding down Command + R until it boots. However if it will not start up then you likely have a completely failed HD. Please follow the steps in If your Mac won't turn on and then if it still won't startup, please contact your local Apple Authorized Service Provider to have the computer professionally diagnosed.
Continue holding down Command + R until it boots. However if it will not start up then you likely have a completely failed HD. Please follow the steps in If your Mac won't turn on and then if it still won't startup, please contact your local Apple Authorized Service Provider to have the computer professionally diagnosed.
Need Start Up recovery mode
