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  1. #1

    MAC Lion's Avatar
    Member Since
    Oct 04, 2011
    Location
    Wiltshire via London
    Posts
    26
    Wi-Fi (no hardware installed)
    Had this today when I booted up on my iMac, tried turning it on incase that worked but it never so I tried re-starting which did the trick.

    Any ideas what may have caused it and is it common?

  2. #2


    Member Since
    May 30, 2011
    Posts
    11
    Sam Problem .Pls help me Anyone?

  3. #3

    j0nb0y32's Avatar
    Member Since
    Sep 16, 2011
    Location
    Doha, Qatar
    Posts
    401
    Specs:
    MacBook Pro 2.2 i7 + MacBook 2.2 Duo 2 (late 2007) + ATV2 + T/C-2Tb + iPhone4 + iPad2 (64gb wifi)
    according to the discussion below:
    https://discussions.apple.com/thread...art=0&tstart=0

    this is a common problem. one of the 'fixes' as described is to not turn on the keyboard and trackpad until the grey login screen appears.

    see if this helps. it doesn't say why it happens though.

    J

  4. #4

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,236
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Yep. j0nb0y32 is correct. It happens to me all the time when I forget and turn on the keyboard and mouse during boot. What happens is the BT radio is locking on to the KB and mouse at the same time the airport card is locking on to the wireless signal. I guess it's too much for the poor brain of the machine.

  5. #5


    Member Since
    May 30, 2011
    Posts
    11
    I did not use any keyboard or mouse .Then how its happen?
    I update my Lion 10.7.1 to 10.7.2 .It still same problem.Pls help me.what do now ?

  6. #6

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,236
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Do you have a wireless keyboard and mouse (blue tooth)?

  7. #7


    Member Since
    May 30, 2011
    Posts
    11
    Nope..i google it but no solution.Finally i will go to format my lion OS X. I hope its work .Thank for all ur Reply.

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