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  1. #1
    Display/booting issues after replacing wifi antenna
    Hello all,

    So my wifi antenna crapped out and my Macbook (2012 13”) wouldn’t detect wifi hardware. I saw that a new wifi antenna was relatively cheap and while a long process seemed like a pretty straightforward repair. I removed the old antenna (the wires connecting it to the wifi card had frayed in the uncovered section) and popped in the new one exactly the way the old one was. I pressed the power button and there was no boot chime, the optical drive didn’t make the usual sounds it makes at boot up, and the screen was completely dark. No backlight from the keys either. The fan spins and the hard drive powers up. The light on the front stays lit.

    I’m not entirely sure what this is indicative of, if the wires connecting the screen to the board are starting to go or if the board itself is going or something else. I checked all the connections on the board and they were good. Before I go ahead and dismantle the screen, I wanted to get some perspective on what actually happened here. I also put the old wifi antenna back in just to see and it was the same story. Before I replaced the old antenna, it still displayed and booted fine, just said “no hardware detected” for the wifi and I had use an ethernet cable to get internet. I reseated the RAM because I read things like this sometimes happen with RAM issues but with no display or sound there’s really not much to go on.

    Any and all help is appreciated, I need my laptop to do my work so I want to figure it out as soon as possible.

    Thanks so much!

  2. #2
    Display/booting issues after replacing wifi antenna
    jasongoldworthy's Avatar
    Member Since
    Aug 28, 2017
    Location
    Wales, UK
    Posts
    137
    Your Mac's Specs
    iMac Late 2009 32GB Intel Core i7 27" OSX 10.13.6
    hi there,


    have you tried removing all the ram and powering on the MacBook to see if you get any sounds then ?


    as if its booting at all it will make a sound to tell you no ram detected,
    Apple iMac mid 2011 27' intel Core I7 2600.
    32GB DDR3 Ram.
    Mac OSX 10.13.6
    500GB SSD 1TB HDD

  3. #3
    Quote Originally Posted by jasongoldworthy View Post
    hi there,


    have you tried removing all the ram and powering on the MacBook to see if you get any sounds then ?


    as if its booting at all it will make a sound to tell you no ram detected,
    Hey Jason!

    Yes I did actually and I still got no sound from the laptop.

  4. #4
    Display/booting issues after replacing wifi antenna
    jasongoldworthy's Avatar
    Member Since
    Aug 28, 2017
    Location
    Wales, UK
    Posts
    137
    Your Mac's Specs
    iMac Late 2009 32GB Intel Core i7 27" OSX 10.13.6
    ummmm ok sounds like the logic board may have failed have you tried a PRAM reset ?



    link here if it helps.

    https://thenextweb.com/lifehacks/201...c-on-your-mac/
    Last edited by jasongoldworthy; 01-28-2019 at 10:35 AM. Reason: more info
    Apple iMac mid 2011 27' intel Core I7 2600.
    32GB DDR3 Ram.
    Mac OSX 10.13.6
    500GB SSD 1TB HDD

  5. #5
    Display/booting issues after replacing wifi antenna
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,180
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Are these the steps you followed?

    https://www.ifixit.com/Guide/MacBook...lacement/10363
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  6. #6
    Quote Originally Posted by jasongoldworthy View Post
    ummmm ok sounds like the logic board may have failed have you tried a PRAM reset ?



    link here if it helps.

    https://thenextweb.com/lifehacks/201...c-on-your-mac/
    I attempted to reset the PRAM but it’s still behaving the same way. Without a display it’s pretty hard to tell if it did anything.

    - - - Updated - - -

    Quote Originally Posted by ferrarr View Post

    That isn’t exactly the fix I was attempting, but as far as disconnecting the wires from the airport card goes I followed those steps.

  7. #7
    Display/booting issues after replacing wifi antenna
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,180
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  8. #8
    Tried an SMC reset- the charger light changed to indicate it was reset but still behaving the same

  9. #9
    Any other thoughts?

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