Wiring diagram for Kotion each G9000?

The mic has stopped working on my Kotion EaCH headset. I cannot find a diagram anywhere. It’s on a 4 pole jack but there are only 3 wires: blue, green, and copper (assumed ground). I want to replace end but I don’t know which wire is the mic. Help?

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Hi,

Are you sure that there are only 3 wires in the cable?

Have you stripped the cable insulation back a bit in case there is a 4th wire that has broken off short of the end.

If you are replacing the jack, you may have to cut open the jack (if it is a molded plug you may have to cut it open with a safety razor blade) and check which wire goes to which ring connector and see how many wires there are.

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