I encountered two problems with my a6000, and didn't find specific solutions to either here. I wrote up the solutions I did finally work out here: http://www.telirati.com/2016/05/telirati-tips-1-sony-raw-noise-and.html
The bricking problem was particularly scary. I thought I had a doorstop. Considering how easy it is to do, I'm surprised Sony doesn't have a returned merchandise problem because of it. The updater should be improved to prevent it.