No sound on Soundlink 2 from one side but both working using cable
My Soundlink 2 headphone has stopped giving any audio on from the left side (headphone) when on Bluetooth but both sides work fine when using cable.
I have tried multiple devices - Android, Firestick, Windows 10. Same issue.
I have also updated firmware, switched it off, plugged it to wall charger for a few minutes, taken it off charge, removed pairing and re-done pairing with devices.
Nothing has worked.
Do please provide a solution.