Join Date:Joined: Feb 2015
Hi I've got the same problem.
My headphones (brainwavz m1) aren't working with my phone. I'm running official firmware 15.4.A.1.9. The official sony headphones which i've got with package works without problem. I have this problem since previous update (about 10 june 2014 i think) i thought that it's software bug, and i had hope that they will fix it with next system update, but i was wrong. I restored fabric settings and it was fine for about 1 hour after that time the problem is still occurring.
Any ideas how to fix it? i'm thinking that's a system bug but i'm totaly green in this topic.