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I am trying to do a clean install of El Capitan using guide on support.apple.com. I reformatted they drive as told, but now I am getting an error while trying to do the new install. Every time I try to log in with my Apple ID, I get the following error:

AMD-Action:authenticate:SP

I have no clue why this is happening. I am doing a reinstall of macOS Sierra on my other mac and this is going as it should. I also see the device logged into the Apple ID when checking it on appleid.apple.com.

Does anyone know how I could get out of this? I don't have any backups, so I really need to do this install.

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it's an Apple id problem. Solution: Power on your Mac and keep Command+Option+R (CMD+ALT+R) Then connect your wifi network and install without Apple id. i tested, it's work.

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  • How do I install without using an Apple ID? It pratically forces me to log in when I go through the steps.
    – Maud Kon
    Nov 25, 2016 at 8:32
  • I would like to know that also, I have the same problem.
    – Steve
    Jan 24, 2017 at 14:30

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