Wierd deal. I had been having an issue where the "second" USB port on my 15" 2011 mbp would sporadically go dormant, and would NOT reactivate until I rebooted or restarted the machine. Took it into Apple genius bar today, and they determined i/o board not getting proper voltage/current at ports. Part ordered. Anyone else had an issue with the USB or other ports going inop sporadically?
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Failure of i/o board on 2011 mbp15
- Thread starter TomH TX
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Is this whilst just on battery, and not mains? when on battery only one of the usb ports will provide full power.