Thread: How to modify nuvi firmware for supporting a new TTS voice.

Tools::
Hex editor
RGN_Tool

How to ::
Just replace a non-use TTS voice with your new one within fw_all.
First you need to know where TTS voice is in .
To use Hex editor to find it out !
A well known TTS voice is English American Jill.
So simply search .

Then we will edit by replacing the original TTS voice with new one.
Next :: Checksum


That's it.

NOTE: To add an unsupported voice to your firmware without having to edit it using a Hex Editor, go to [Only registered and activated users can see links. ] for detailed instructions on using RGN Voice Editor V2.02. Works for both non-TTS and TTS voices.