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  1. malandro's Avatar
    Hi guys

    I recently upgraded from High Sierra to Mojave on my 2013 15" Macbook Pro . For the first two days everything was fine. Then on the third day the Wi-Fi stopped working as if there wasn't any Wi-Fi card installed. I took the MacBook to the Apple store, and they turned it on, wifi worked fine. Tech did some tests and told me everything is fine. Got home, turned it on, "no hardware installed". I google it and I learned how to do NVRAM & SMC Resetting. Did those, worked again. Few days later, stopped working again. Did the NVRAM & SMC Resetting again, and it worked again. Two weeks later I got to the point where I needed to do the NVRAM & SMC Resetting every time I turned on the MacBook. Since yesterday, resetting doesn't work anymore and I can't get wifi to work. Tried 20 times today and can't get it back. Any help would be appreciated. Thank you

    Last edited by malandro; 10-14-2018 at 02:56 PM.
    10-14-2018 01:05 PM
  2. Just_Me_D's Avatar
    Please be careful to not post serial numbers and other important information.

    With that being said, I would try reinstalling macOS Mojave to see if that fixes the problem for you.
    10-14-2018 02:44 PM
  3. malandro's Avatar
    Please be careful to not post serial numbers and other important information.

    With that being said, I would try reinstalling macOS Mojave to see if that fixes the problem for you.
    No. That doesn't work
    10-14-2018 02:57 PM
  4. Just_Me_D's Avatar
    No. That doesn't work
    Did you try or are you saying that you don’t want to reinstall Mojave?
    10-14-2018 07:39 PM
  5. malandro's Avatar
    Did you try or are you saying that you don’t want to reinstall Mojave?
    I did reinstall Mojave. No change. Now I am trying to downgrade back to High Sierra
    10-14-2018 07:50 PM
  6. malandro's Avatar
    When I try to reboot the computer using Shift-Option/Alt-Command-R to downgrade to High Sierra I get this :
    10-14-2018 07:54 PM
  7. malandro's Avatar
    When I reboot în option + power the wifi works. If I reboot normally, I get the x and the "no hardware installed" message
    10-14-2018 08:26 PM

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