wires inside are separately isolated conductors, covered by some paint without plastic isolation. Like simple 3 wire headphone’s cable but 10 wire. I was able to fix the headphones! As I wrote in my first message, I was able to find only 9line replacement cable instead of 10, which I need. I had some time to think about different ways to solve the problem. One of them was to use 9core cable + 1 separate core. With lots of soldering work, it's possible to do. You would get kinda 3 parts cable. Hidden in the headband middle part would be 9core + 1 separate wire which would be soldered with pieces of old cable, I had to cut and test for consistency by resistance measuring. 20 points of solder work would hide in the headband and all work would be done. The ear cups are held in place by thin wire arms and a flexible padded headband, covered with more fake leather texture. There are a few nice brass accents here and there. It means you can share whatever you’re listening to with a friend using a standard headphones cable, as you might want to on a plane, train or in the office. the circuit board in the left ear (for mine) is super simple and as that is the one not working for me it's really easy to replace.

User Manual - Major II Bluetooth – Marshall

Ensure your sound source has completed all the latest software updates. Once updates are completed, restart your sound source and try to establish the connection again. For me, biggest challenge is how to find proper cable which is similar in size and quality to genuine.I f you are having issues with connecting to Bluetooth, there are a few troubleshooting tips we advise you try to resolve the issue: Like any on-ear headphone they start to pinch a little for extended listening sessions, but they’re more comfortable than many I have tried. The band is also much more comfortable than some on-ear competitors, with a nice soft-touch covered foam padded strip sitting on your head. I also noticed in my case that after freshly charging the left speaker sometimes works. The left speaker (on my headphones) is easy to open up, but I haven't seen anything obvious at the connection. As you point out the cable between the two ears may need to be replaced. Move the devices (headphones and sound source) closer together. The device and headphones should be within 10 meters of each other, unobstructed by walls or doors That said, both are based on the same recipe and -- to switch metaphors -- the Major II headphones can stand proud as the new flagship on-ear headphones from the company, and they even cost a little less than FX 50 model as it's phased out. Conclusion

Marshall Major II Review | PCMag

It was awesome surprise, when I went to saved link to one of few aliexpress stores, who was selling proper cables and found new 10 wire cable, I missed so long. I had the same problem and looked through user manual to find the way to hard-reset the device. As it says: The detachable cable means the music doesn’t stop when the battery runs out, but also makes it easy to connect to a computer or share your music with a friend. Photograph: Samuel Gibbs/The Guardian Pros: great sound, very loud, good isolation, excellent battery life, easy to connect, great controls, fold up for transport, relatively compact, sturdy Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. See how we test.

The ear cups isolate both your music from the outside world and the outside world from your music. Photograph: Samuel Gibbs/The Guardian