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  • USB ports slow/not working on a Mac
  • pebblebeach
    Free Member

    The USB ports on my sons mac appear to be playing up. They either won’t work intermittently or they appear to be charging his iPhone very slowly.

    Is this like to be an SMC issue requiring a reset?

    Posted 11 years ago
    danielgroves
    Free Member

    Like you said, it could be the SMC. To reset this:
    1. Shut down the computer.
    2. Disconnect the MagSafe power adapter from the computer, if it’s connected.
    3. Remove the battery.
    4. Press and hold the power button for 5 seconds.
    5. Release the power button.
    6. Reconnect the battery and MagSafe power adapter.
    7. Press the power button to turn on the computer.

    Otherwise it could be dirty contacts as well, try giving an air gun squirt in them if you have one.

    Posted 11 years ago
    singletracked
    Free Member

    have you tried blowing into it or cleaning it out with a cotton bud?

    Posted 11 years ago
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