You may (or may not) remember the [problems](http://www.martinirwinphotography.com/myblog/2013/02/21/let-down-by-sony) I had with my NEX-C3. In summary, the two problems were:

* The rear control wheel buttons were not responding (in the left and upward direction)
* The rear screen had deteriorated massively, after careful use

I was upset, and wrote the aforementioned article saying how I was let down by Sony. I still think that I was, in a sense. Either way, it was evident that it was up to me to either pay Sony ~$250USD, or fix it myself. After some detailed searches on the internet, I found solutions to these niche issues.