Why we should think about regional firmware.
JCV files now were locked.
1).Thailand
2).Sg/My
3).Indonesia
4).....??
To use Sg/My jcv you need Sg/My firmware., if not , you can use only map not Sg/My jcv feature.
I don't know about Philippine JCV., will be locked in the future or not.?
If it will be locked so you need PH firmware to use PH jcv or at least you need to modify 3790US to use 3760PH firmware.
( 3790US can't be modified to use 3770 Thai firmware so 3790US can't use Thai jcv.)
So you may need more data or buy 3790US if you dont mind about jcv or 3790US features.
What's different between 37xx US & Asian firmware.
[Only registered and activated users can see links. Click Here To Register...]