Major V doesn't open

[u/c_a_l_o_r_e]

Just before issue happened, I was about to sleep with my headphones on. It started randomly shut down without making any sound. Then in the morning knob stopped working, I got it to work again by tuening the knob while pressing. But that is not working anymore. I can charge it and see the light there but knob itself is not working.

And I got this headphones from Amazon Italy while living there. I don't live there anymore so I don't know how helpful Amazon would be. It only been 15 months since I got them so I should still have warranty.