Thread: Nuvi 3790. Disappeared features? Model# loss problems ?

Hello there

I am brazilian, have this 3790T purchased in the US a few months back.

It worked fine. Bluetooth conection with my Blackberry, Voice Command tested ok.

I updated the CN North American map by connecting it to the Garmin website, using myGarmin, GarminMapUpdater v3.1.13 and again TODAY using GarminMapUpdater v3.1.14.

The maps are now CNNA Upper CAN DEM North America and CN North America 2313.10 ALL traffic trends North America 4.25. There are no other maps and no SD card inserted.

Firmware: 2.6
Software version: 4.9
Audio Version: 2.7
Text version: 4.9
PMIC version: 824
TSC Version: 1.16

The Bluethooth connection and the Voice Command fuctions STOPPED working after the first update. And are still not working after the v3.1.14 update.

I mean: there is NO "PHONE' icon on the main screen and the 3790T does not respond to connection request by my phone. Voice Command means NOTHING now.

Furthermore, when I turn the device ON, there is this pop-up message: "Cannot unlock maps"

All the update process went OK except the fact the maps were not saved to my HD, as I requested. But a final message said "Your device was updated OK".

Can anyone help me with these 3 issues ?
IMPORTANT: If you have found this thread because you have lost features and your 37 Series nuvi now identifies only as 'nuvi 37xx' on start-up and in Tools>Settings>System>About screen, please read Posts #34 and #38 BEFORE asking for help in this thread. If you have a backup of your unit's region 41 then simply restore it and your unit should then function normally. See Post #25 for details and read [Only registered and activated users can see links. ] for instructions on how to make and restore rgn41. If you don't have a backup of rgn41, you can regain all features and more by converting it to 34x0 but see the warning re accuracy in Post #25 and read the threads linked there before deciding. Don't post anything in open forum showing your Unit ID, that must be done by Private Message only as per Posts #34 & #38.