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I did accidentally overpowered (12v) the USB Port of My MacBook Pro 2015 by putting a powered male usb. (I know that is stupid of me). Immediately the display and the light of my keyboard went off. I hear on the sound of the MacBook that the Mac is still alive.

Now I am questioning myself. -are the display and keyboard light dead and have to be replaced? -is there any protection mode designed by smart apple engineers to protect such a rare situation. By for example a fuse (for backlight/display, I found on YouTube the replacement instructions already. For keyboard I didn’t yet found any) or a software mode?

I’m not able to search for any resource to help me solve this. What guides or steps are people using for this situation?

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  • What precisely is a "powered male usb"? – Tetsujin Jul 20 at 11:51
  • Sorry for the unclarity. With a powered male usb, I mean a usb which is supplying 12v power (this is used to charge my son’s AliExpress purchased drone). I Accidentally putted this in de USB port instead another usb which was laying next to each other. – Bahram Jul 20 at 13:07
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    Take is to an Apple store, or an Apple authorized service center and have it checked out. – user3439894 Jul 21 at 21:42
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    @anonymous; we are on the same page. I am on holiday currently. No access to the laptop right now. In the meantime I have studied many YouTube instructions. After my holiday I will perform a hard rest, then replace the fuse etc. Will update you all. Thanks! – Bahram Jul 28 at 10:45
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    I am not sure. It is handy to have one. I hope it is a matter of a defective fuse. Otherwise I will buy a secondhand laptop en put it over. I see also some offers on AliExpress:-))) – Bahram Jul 28 at 20:19

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