Chosen Solution
When I use my headphones on my ipod nano only half of the audio works. Meaning that I can’t hear the other instruments as the song plays. Same thing happens as I use external speakers as well.
Hello Tan, it seems to be L and R audio out without GND, Here you can find the teardown guide, try to fix existing headphone connector by narrow ejecting the GND contact pin or you can replace with new connector.
