No sound/NC in right cup

There is no sound or noise c. in the right cup. The left cup sound and nc works okay and also the touch sensor on the right cup. There is no sound in either bluetooth or when wired

I had to open the left cup to change the swevel hinge and i'm woried that i didn't attach the connectors properly or that I pinched the cables somehow..
Are there any posibilities of a connector having come undone or a pinched cable? I am a bit weary about opening the right cup with the battery and touch sensor.

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I have once had a similar headphone in with no sound and the issue was that the solder was broken off the speaker itself. If the left side seems fine then unfortunately you have to check the other side to make sure it is connected to the main board.