How to Replace Headphone Connector

It depends on whether your earphone has a headset. There are four plugs with headphones and three plugs without headphones.

Let's talk about four plugs first: (from the outermost section, that is, the end where the mobile phone or computer is plugged in, the first section is the left channel, the second section is the right channel, the third section is the microphone, and the fourth section is the ground) Apple's headphones are a bit strange, some are the third section and the fourth section is the microphone, and some are just the opposite, depending on the measurement.

Three plugs: (from the outermost section, that is, the end plugged into the mobile phone or computer, the first section is the left channel, the second section is the right channel, and the third section is the time and place)

The three plugs are easy to repair and the rubber is peeling off. Generally, the gold enameled wire is the ground, and the red and green enameled wires are the left and right channels.

Four plugs are a little more troublesome. It is easy to maintain with a multimeter. After measuring the ground wire and the left and right channels, the rest is the microphone wire. According to the definition, put on the heat shrinkable tube and weld it with a soldering iron, apply some hot melt adhesive, cover the heat shrinkable tube and heat it. The interface is beautiful. That's what I did. I hope I can help you.