Model A1369, 1.6, 1.7, or 1.8 GHz Processor, 64, 128 or 256GB Flash Storage

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If the io is defect will it prevent booting

My MBA is completely dead. Won't charge. Only a very dim green light. Pressing the start start button does not have any effect. The I / O board, if thats defect, can it course this situation or is the mainboard broken?

No liquid or bumps.

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Thanks for your reply. I'll will have a closer look at the logic board.

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Peter,

Given your problem I don't think your I/O cable is the problem. The power logic is part of the main logic board. It's more likely you have a bad logic board (cold solder joint).

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Use a multimeter to test the output of the charger. What does the battery test button tell you? Professional serve people have a place in life too. Even they might have a tough time with this one.

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Peter will be eternally grateful.
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