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

Originally Posted by aekhong

For mod gcd--> wiil not work because you use the same swv2.50
so ., chang swv to higher or lower.

For rgn ., it will flash to your nuvi.

for .gcd ., it's better to put in cs card\garmin

if your mod gcd is the same bytes --> it's right.

For me ., I like to use .gcd file.
DOn't worry., You use original boot.bin
Your nuvi will be ok.

Hi Aekhong ,

You are really the man , the modified firmware that I followed your instruction , works a charm ..
but seem that the Thai_Narisa.vpm is a bit hiccup ... :-)

Is the Thai_Somsri happened same thing ?