Mid 2010 MacBook Pro 15" will only charge with one charger

Discussion in 'MacBook Pro' started by jpow112, Jan 13, 2017.

  1. jpow112 macrumors member

    Joined:
    Nov 12, 2007
    #1
    Hi -

    My reserve machine, which works well otherwise, is very fussy about chargers. It will only charge with a particular 3rd party charger. It won't charge with its old original charger, or any others. The original charger will however charge any of my other macbooks without a problem.

    I've tried reseting the SMC, without effect.

    Any other ideas?
     
  2. craig1024 macrumors regular

    Joined:
    Feb 15, 2016
    #2
    How dirty is the MagSafe port try cleaning the connectors also check if something is preventing the charger from going in all the way.
     
  3. jpow112 thread starter macrumors member

    Joined:
    Nov 12, 2007
    #3
    I'll have a look at the ports with a magnifying lens - I guess there could be a physical difference between different chargers. Is there any handshaking with chargers, or is it purely a DC current?
     
  4. Awjvail macrumors 6502

    Joined:
    Nov 21, 2010
    #4
    There absolutely is handshaking with the devices. The magsafe performs a handshake before any power is delivered.

     
  5. jpow112 thread starter macrumors member

    Joined:
    Nov 12, 2007
    #5
    Interesting stuff.

    What confuses me is that the third party charger works, but not the official one. Apart from a physical difference with the pins, I can't imagine why a handshaking protocol would reject the more legitimate charger.
     
  6. tubeexperience macrumors 68030

    Joined:
    Feb 17, 2016
  7. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #8
    I'd say, "use what works for you", and be happy with it.
     

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