Likes: 
Maybe you'd like to load the 37xx firmware treated with [Only registered and activated users can see links. ]. It's intended to enable all possible features in 3750/3760 so it might do something to your (now) 3700. I've had no experience with it used in an actual 3700 which i think was a regional European-only device, so I don't know what it will do to your device and it's all your risk if you try it. I haven't read that thread for years but i do recall there was conflicting info whether it worked in fw later than V4.90. If you want to try it, the original V4.90 is available here to patch:
Otherwise, you can go straight to erasing region 41 and cross your fingers that works, details about flashing text commands from SD using boot.bin as Ldr.bin are here: [Only registered and activated users can see links. ]. This is the command to use in Garmin\Updater\1101\update.txt:Code:Please Login or Register to see the links
Backup nonvol with rrgn command first of course.Code:Please Login or Register to see the links
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Thread: Nüvi 3790
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17th April 2024, 09:28 PM #1Garmin/GPS Systems GMod.
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'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
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18th April 2024, 09:51 AM #2Member +
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Hi Neil, thank you for your support and help. I will read what you tell me, and I will try to carry out all the steps.
I cannot download the version 4.9 file from either of the two links. Can you provide me with the file in another way? In the first link it does not find anything saved with that url: and in the other, it no longer exists.
I have a doubt when it comes to flashing and no matter how much I have read it does not clarify it for me. When I upload a file to flash, do I have to modify the HWID before uploading it?
Regarding deleting the nonvol from the sd card, can it leave the nüvi completely dead?
Thank you very much for everything Neil.
Greetings;
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