As if it were a matter of life or death, Sony decided to use the USB-C class connector on for either charging and plugging in your headphones on Sony Xperia XZ2 Premium light blue Pie 9 52.0.A.8.50 Cool!
But the cable from factory is too fragile and I came across this silly problem.
Solution: Though these cables are fragile, you can still purchase a stronger and mor robust replacement headset USB-C adapter cable for like really cheap.
Problem solved!
But I don't give up my Xperia XZ2 Premium light blue because it's got the Snap Dragon CPU Octacore!