I have heard from several Sony NEX-5N owners that the “performance improvement” offered by Sony for the NEX-5N’s clicking defect during video capture has been resolved.  I recently confirmed this for myself with several NEX-5N models that had the fix applied.  In all cases, the clicking was not audible to me anymore.

I’m revising my Sony NEX-5N review to reflect this solution and changing my recommendation for the NEX-5N as a highly-recommended camera.