Thread: How to convert 3790us to 3790 Sg/My

Originally Posted by kevindd992002

what program do I need to do the steps in post#1?

You need RGN_Tool to edit firmware --> [Only registered and activated users can see links. ]
Updater.exe to flash your modified firmware into Nuvi.
Download link ::

Code:

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UnRAR then you get updater.exe inside.

You need Pre-boot mode.