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MacBook Air A1466 Not turning on, damaged JTAG connector repair

From Repair Wiki
MacBook Air A1466 Not turning on, damaged JTAG connector repair
Device MacBook Air A1466
Affects part(s) Motherboard
Needs equipment multimeter, soldering iron, soldering station
Difficulty ◉◉◉◌ Hard
Type Soldering


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Problem description

This article is aimed for a not turning on MacBook Air A1466 that has a corroded/damaged JTAG connector

Symptoms

  • Not turning on
Corroded JTAG connector (Figure 1)

Solution

JTAG connector (even if unused) that is corroded or damaged can cause several problems or help you figure out the problem. Connector must be replaced/removed and the area must be cleaned.

Example video (youtube).

Example video where three A1466 MacBook Air machines did not have a green light on the charger caused by corroded JTAG connectors.

Good method for removal of JTAG connector

You can buy them from here