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820-3462 ASD Error SMC I0 Failed

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  • 820-3462 ASD Error SMC I0 Failed

    Hi Guys a customer brought in a macbook pro early 2013, the problem in the fans are spinning at max speed. I checked the board signs of water damage, and none so i ran the internet asd and got error 4SNS/1/C0000008: Ts0P--124. Then i ran the asd efi mode and got error( SMC I0 Failed )any ideas on where too look from here.


  • #2
    Is thermal sensor in the trackpad. I bet corroded flatcable/connector to trackpad.

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    • #3
      Hi Duke, turns out it was something with the camera. i replaced the trackpad had same problem, turns out the smc camera and trackpad run on the same line. so when i unplugged the camera fans started to spin at normal speed its a retina display and it looked distorted so i gave it back to the customer to replace it with a good lcd set up.

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      • #4
        It is actually the ALS. You can cut the data lines at the camera connector. Camera will still work, just no ALS anymore.

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