The Samsung Z1 is the world's first commercial Tizen Smartphone and hopefully it will not be the last. Update: The Samsung Z2, Z3 and Z4 have come out since. Some of you developers or tech enthusiasts might have the need to flash the software / firmware on your phone and below are the Instructions and a little video showing you the process.
Please be aware that you can brick your phone, which means it might become totally unusable
https://www.youtube.com/watch?v=hzI4hI8L-rw