Hi friends, I am from another country on this great game and maybe the translation is not quite correct. I bought myself a connect nav radio, installed it, and it requires (master code) I don't have it, what can be done to make it work ? I tried to alter it to the IOS 12.2 but it is when you start the firmware writing error 0х83 not the right software, any of my actions, I like to look at the firmware version ?