Right speaker not working on MacBook Pro
Just bought a used MacBook Pro (Retina, 15 inch, Early 2013). Did not check sufficiently and the right speaker does not work.
Googled it and did everything I could find, software wise, to try and fix (checked all relevant and obvious settings, including Audio MIDI setup, Reset PRAM and SMC, reset coreaudiod through the Terminal app).
Just wondering if there's anything I missed and if the only possible source of the problem left has to be a hardware issue ??
Any ideas and suggestions welcome !