TomTom custom language menu

Which file I need to edit, I want to translate english menu to my language(not voice, i have voice file into my language).

A saw on somewhere i need to edit *.mnu file in SDKRegistry folder or something like that, but that info is very old (probably for older version)coz i use version 9.510 and into that folder i didn't saw that file.

I need Serbian menu, all people say that the menu in this language does not exist but i saw one guy sales TomTom Via LIVE (125 or 180 idk) in Serbian menu.
This is images
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TomTom Via LIVE (125 or 180 ink) in Serbian menu.
This is a so-called Nav3 device and can only been used with MyDriveConnect.
It is not possible to use that menu on Nav1 and Nav2 devices.

menu file in SDKRegistry be for years no longer supported by TomTom and was only usable with NAV1 and NaV2 devices. Remember, though, that it is not possible to make a Serbian menu.
But study the mean TomTom menu builder.
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Is possible in that device tt vila live use FastActivate, install navcore,change bootloader and all other thing like on TT XL, TT ONE, etc...
Or I need some special activator, special navcore, bootloader or it can't be cracked?

it can't be cracked?