Unused internal connector on logic board
There's an unused internal connector on the MacBook Air 2013 logic board, see picture. What's the use of this connector?
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cerberusss, that is reference designator J5100. It is used as LPC+SPI Debug Connector. Definition for those are Low pin count(LPC) Serial peripheral interface(SPI). Looks like an Apple way to debug the logic board. Hope this helps, good luck.
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This connector features on many (all?) modern MacBooks. The pinout changes from model to model though. I am making adapters to go from this plug to Bus Pirate 4.
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this connector is used to reset or reprogram the EFI bios chip
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it’s Jtag… Destroy it… its to program the board… Apple uses it.
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