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

Originally Posted by GeorgeRace

..Well, I tried what you said, and it indeed work and the message at the top said loading software, with the Garmin Logo and blue triangle in the middle of the screen. After about 20 minutes, I plugged it into the computer USB port. It immediately sent up an error message, something about not the right version of something and it shut down.
Now, a completely new situation, no matter what I try all I get is the Garmin Logo in the middle of the screen. Have tried to get back to pre-boot condition, but after about 20 tries it does not seem to want to work. And between each try, I held the off button for about 15 seconds, just to make sure it was going off.
What do I need to try next?

George, my suggestion was to enter in pre-boot to load a firmware (3790 or 3490 fw) by the update.exe. For some strange reason appeared after the Garmin logo. If this "logo" is of the 3490, to enter in pre-boot do as suggested by Lolypop, ie, just press and hold your finger on the "G" of "logo" Garmin. If the "logo" that appears is of the 3790 the position is different, ie, press and hold your finger just above the "G" of the "logo" garmin, or do as I suggested in the previous post (top left corner of the screen). Before you get ready to install the desired firmware with update.exe, as indicated at the start of the thread, so get in pre-boot.

p.s: Everything indicates that you have the firmware of 3790 with the logo of the 3490, so this locked. So to enter in pre-boot and reinstall the firmware that you want, start trying to press the letter G, but only when the logo appears on the screen, and not before. Alternatively, I believe that now may be the time to reinstall the 3790 logo (also by pre-boot) as suggested in the previous post by Loly and explained in the first post.