I don't know if this has been discussed or not, but I side loaded Lumia camera 5.0 to my 830. Basically, I went to the store via the internet, and downloaded it to my phones SD card. It took it a couple of recycles for the phone to find the app and let it load, but I now have camera 5.0 without the latest firmware. It does ask me to upgrade, which I just hit the back button and ignore.