if you want change maps (dont want use original maps from navigon server), you can use Windows Phone Power Tools or Windows Phone Device Manager and extract file filelistBA.xml to PC and edit right size of map file....
- Navigon 4.1 Europe is installed to
\Applications\Data\DA8734ED-666A-4227-81EA-8FC937752D98\Data\IsolatedStore
- Navigon 4.1 USA
\Applications\Data\f7a3b10b-302f-49b2-92ae-b77a7392789e\Data\IsolatedStore
for example for Q3.2011 map file for Germany you change to this in filelistBA.xml
<File URL="Map/Germany.map" Size="226969504" ismap="true" ISO3CountryCode="DEU"/>
save filelistBA.xml and replace existing file on device and send Q3.2011 Germany map to MAP folder
for Q3.2011 EU speedcams, process is same....
add this two lines to filelistBA.xml and upload ALL_POIWARNER_EU.pom and HOTSPOTWARNER_EU.nfs files to POI folder...
<File URL="Poi/ALL_POIWARNER_EU.pom" Size="692675"/>
<File URL="Poi/HOTSPOTWARNER_EU.nfs" Size="13942"/>
if you dont know how to see exact size of map file, upload first to phone in map folder and see map size in WPPT
