Neil, very good your tip to change the profile of the countries just by changing "Change Locale" in the Diagnostic Page/Developer Info. But in my 3597 when choose a country and have Audible Alert Speed and then return to the original country, this alert did not keep, as in the example that you gave.
In my tests changing the country to Portugual, for example, will have automatic Zoom and Speed Alert, but the voice command not working. However, just change the Language & Keyboard for local map language that the voice command back to work. If you return to the original countrys in Change Locale, as I understand that you suggested, options enabled with Portugal disappear.
The procedure that I indicated in my previous post, also works fully and voice command also back up and running as soon as satellites are tuned, without being necessary to change the Change Locale. Anyway, the method I suggested is more laborious, serves for 3xx7/8, 2xx7/8, but is indicated for the 34xx/35x5 and 2xx5 (which enables other functions as well), because these do not have the option Change Locale on the Diagnostic Page . Your method is most suitable for 3xx7/7, 2xx7/8, with the accretion that I suggested earlier. I hope not to have complicated lol
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