What have happened with two original european 3490LMTs, was that they only copied DeviceConfig_MP3_Enabled.xml and DeviceConfig_VideoPlayback_Enabled.xml to enable just the MP3 and Video features.
Doing so, Video and MP3 were enabled but Bluetooth was disabled.
After, when they copied DeviceConfig_Bluetooth_Enabled.xml, Video was disabled.
Only when they copied the .xml files all together, both Mp3, Video and Bluetooth were enabled simultaneously.
My device is a european 3760T and after I copied the .xml all together, everything was enabled, including ecoRoute (I 've bought the ecoRoute™HD device).
Here is my .System\Diag\html\supported_features.html
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