We will be continuing maintenance on the wiki starting this Saturday at 9 am (UTC) to Sunday at 7PM (UTC).
There is a possibility of long maintenance-breaks and downtime during this time.
For more information contact us in the wiki Discord or by email at: unto@fighttorepair.org
JTAG
JTAG connector
Corrosion or damage at this connector can cause several problems or help you figure out the problem, Louis explains why here: https://vimeo.com/315821125 (vimeo), https://www.youtube.com/watch?v=ECWJ3Um1UQU (youtube)
Some examples of corrosion at a JTAG connector that prevent a MacBook Air (A1466) from turning on.
Example 1 (from video: https://www.youtube.com/watch?v=uMNDHjo_vWQ)
Example 2 (from video: https://www.youtube.com/watch?v=-YWsaPdFnfM)
Example 3 (from video: https://www.youtube.com/watch?v=XRocLdDqxLk)
Examples from the same video where three A1466 MacBook Air machines did not have a green light on the charger caused by corroded JTAG connectors (from video: https://www.youtube.com/watch?v=HlQ-FUMcNy0)
Good method for removal of JTAG connector: https://youtu.be/O0_0YtdwgF0?t=2290
You can buy them from https://store.rossmanngroup.com/jtag.html