Hi, i had the same problem that told "RKEW" , the cable wich have to make contact with the negative polo where is the battery is not making contact, because the cable is very short. I opened all the headphone and i saw others cables thats are going to break.... i cant belive it because i paid 300 dollars for this.
Here is the photo of the problem:
[image|595414]
So, i have to weld the cable or replace it(s) and clean the contacts where the cables born because i saw sulphate.