My headphone jack is damaged, only right side speaker works
i Plugged in my moto g 2 headphone jack through a home made LM 386 audio amplifier to test a speaker. It was working fine and my earphones worked when i plugged them in later. Then some voltage fluctuation caused a problem, but the speaker was still working. Later when i plugged in my earphones, only the right side was giving sound. I tested with multiple earphones and the same problem. When i tested the earphones on a different device, both sides were working, hence my conclusion that something was damaged internally in my phone's earphone jack. Please help me sort this problem out.