Hi Guys, I have a w204 april-2008 (c220 cdi Avantgarde) car with Comand aps ntg4, i'm downloading the v12 versión of this link "https://www.gpspower.net/mercedes/331012-comand-aps-ntg4-204-v12-2014-2015-a.html" for test the maps :-), but i don't know the process to do it... is there any manual-handbook to do the update correctly? thanks!!!
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