Hello,
I bought a Sony Xperia M4 Aqua about 3 weeks ago and I have test for charger, headsets as the regulations. But, a few days later my headphone jack won't detect any headsets or headphones. It works sometimes but at this time it's not working. I've tried with an app called soundabout and it's working but the songs played with a very low sound. And I uninstalled the app later, after that the headphone jack won't work again. I don't know what to do:( please somebody help me:(