12Z v1.7.1 question：

[jpno1]

Hi all, I had my 12Z running v1.6.1 software for years, as I need to access service menu to change region code when I switch my Europen 72mhz to Japan 2.4Ghz module . I just want to know if the v1.7.1 service menu still have the function to change region code so I can safely update?

many thanks ~!~

[david m]

Down grade to ver 1.2 or 1.3, change the country setting also worth re calibrating,
then update to ver 1.7.

[jpno1]

Originally Posted by david m

Down grade to ver 1.2 or 1.3, change the country setting also worth re calibrating,
then update to ver 1.7.

is the 1.7.1 downgradable ? I can only find 1.6 and 1.7.1 firmware online now...