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Each time I restart my 2018 Mac mini running Mojave after a complete shutdown, I have to connect my Magic Keyboard (to USB) to be able to type my login/password.

Once it's done, I can unplug it and use it via Bluetooth.

Question; is it a "feature" for some security reason? Or is it a bug? (keyboard battery is at 100%). How can I get it to retain the Bluetooth connection across reboots?

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  • Hi, I have added the references. :) – COil May 5 '20 at 17:29
  • I edited the question so it’s so its much easier to read. Hopefully it’ll attract attention and answers! +1 for an interesting question. – Allan May 5 '20 at 17:32
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    I've rolled back the edit to Allan's edit because you have already said "2018 Mac mini running Mojave" so there is no reason to say it twice, or say "How can I get it to retain the Bluetooth connection across reboots?" twice. – user3439894 May 5 '20 at 17:50
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+50

On my iMac running Catalina I can enter my password after reboot using the bluetooth Magic Keyboard without connecting it via cable. Although you run a different version of MacOS on a different machine it seems to me that this is rather a bug than a feature. Does it also appear after reboot or only after complete shutdown?

I have two ideas you can try to fix the problem: First, reset your SMC. If this doesn't solve the problem reset your bluetooth controller.

If both things don't work, connect the keyboard to another Mac to see if the problem is the same. If it is, I would order a new Magic Keyboard or go to an Apple store.

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  • Hello, I've tested to reset the SMC, no result. For the Bluetooth reset, I don't have the "debug" option when hitting CTRML+OPTION + click on the Bluetooth icon. (mojave) i see new item like version, name, address.. but no debug submenu. – COil May 15 '20 at 13:11
  • You have to press and hold Shift+Option while clicking the bluetooth icon. – iOSapps.de May 15 '20 at 15:17
  • You are right, I was doing control instead of shift. Seems to work after a reset of the bluetooth module. :) – COil May 15 '20 at 18:02

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