Chosen Solution
I have two headsets, one with broken jack and other with working jack, so I want put the working jack on my good headset. However the two headsets have different wiring colors and I don’t know which wires to connect. The jack is coming from a microsoft headset where the wire colors can be confirmed here: ++What wire colors are in the TRRS 3.5mm jack?, and the headset I want to connect it to is a Nubwo N2 which I can’t find anything about. The Xbox jack has white, black, red, and blue wires (top), while the Nubwo headset has white/copper/green, blue, red, and red/yellow (bottom).
Ok take a double AA battery 1.5V and 2 random wires then connect them together, hold one side with your finger and the other one connect/disconnect it every 0.5 second, and in the same time put the headset on your head and try to listen which one is making a tiny noise, try the 3 different combination until you find out the common wire (Ground), you can even here them together.
