Introduction
I just had the same problem so I just set my volume balance to the side I needed but eventually the whole bud died and I had searched everywhere for a solution and found none, I even tried resetting the buds and reconnecting and nothing
Conclusion
To reassemble your device, follow these instructions in reverse order.
The small metal screen has to be cleaned, that solved that problem for me. Even if it seems clean, pop it out and clean all the sieves with isopropyl alcohol. One side dead was probably a battery issue, check out the tutorial on how you can replace it.
MrLain -