Yes, my device does support Junction View.

So, it worked when I put the JCV file in the System's JCV folder but it didn't work when it is in a microSD card, no matter where it is in the microSD card, even the JCV folder.

I have to put the JCV file in a microSD card because there are other maps and JCV files which are using all the space of the internal storage, so what I was planning is to put the North America maps and the JCV file together in the SD card, the map works but not the JCV.

Please advise me what to do! Thanks!