Thread: Transform a Nuvi 37xx in a Nuvi 34xx for dummies

Originally Posted by Giomen

All three consortium member must suppose the Text message feature - Navi, phone and you. Do you sure in your phone?

Yes my BB torch has the bluetooth Message Access Protocol (MAP) set. So it should work but I do not see the icon on the GPS... I do not know why, Garmin is showing that my phone is supported.

I did check the instructions below but still not working...
If the nuvi is paired to a mobile phone that does not have MAP, it will not read text messages. If your phone has MAP but you are still not getting text message notifications, you may need to refer to your phone's manual for steps on how to ensure that MAP is enabled.

Additionally, your nuvi will only read text messages if you have a text-to-speech voice language selected.

To change the voice language on a nuvi 3490LMT:

Touch Settings on the main menu
Touch Language & Keyboard
Touch Voice Language
Select a voice language that indicates that it speaks street names
Touch Save

Originally Posted by Giomen

.............. But Garmin updates its list of models navigators faster than third-party phone... :angry:

And then sells the old models to [Only registered and activated users can see links. ] to anger Giomen even more....ummm?
Sorry Caty, very OT.. no offence taken if you want to delete this.

Yesterday friend and i try different procedure of flashing and we found out this.

If you flash from 37xx to 34xx and you dont clear nonvol satellite accuracy is 3-5 mts.
If you clear non vol and then flash 37xx to 34xx you have satellite accuracy problem.

Originally Posted by lolypop000

Yesterday friend and i try different procedure of flashing and we found out this.
If you flash from 37xx to 34xx and you dont clear nonvol satellite accuracy is 3-5 mts.
If you clear non vol and then flash 37xx to 34xx you have satellite accuracy problem.

Usually I clear nonvol ram before and after flashing. After flashing I cleared nonvol ram several times, and gps accuracy is 5-3 meters.

My case is the same - 3-5 m

@aekhong

We flash 3790.(PCB 8)
And after flash is over and we update nuvi with webupdater and install maps and go outside to lock satellite,then we clear nonvol.
But if we cleare nonvol before flashing and before webupdater we have satellite accuracy problem.(17-127mts)
We spend all day for testing.
Today one another friend flash 3790 to 3490 with clear nonvol before flashing (PCB 8) and he have accuracy problem.(17-127mts)
I flash nuvi back to 3790 and then update all file for 3790 and go outside to lock satellite.
Then friend flash 3790 back to 3490 (not clear nonvol) satellite accuracy is 3-5 mts.

This is an interesting thread about safe text messaging:
[Only registered and activated users can see links. ]

So clearly it doesn't work for the 3790 but should work for the 3490, that is why I am wondering if something is missing in the files and the bluetooth connection is still from the 3790???