nuvi 3790

Then it is some other file/files causing the problem.

Check if there are any map files in ".System" folder of your backup other than with "gmapbmap" naming. If there are such files in .System of the backup, then re-flash the device with Cure firmware to get PC access and remove any map IMG files and other associated files like UNL and GMA. GarminExpress doesn't renew basemaps so it should be safe to leave gmapbmap.img in place as it will be the OEM factory loaded originally.

If there are no other detail maps in .System, then after flashing cure fw you could progressively remove other files like GPI files from POI folder, Voice files, etc., starting with files showing recent creation dates. If you'd rather not bother with that then you can remove everything and just leave an empty GARMIN folder in the root of the internal memory. If it boots with just a GARMIN folder you can replace much of the content including map entitlement via GarminExpress. If necessary it can be reformated but don't use the Windows built-in tool for that! It may not work properly, we need to use a specialized tool named RMPrepUSB with particular settings to ensure it works properly.

PS: Of course you'll need to re-flash Original fw again after removing files and before trying a boot.

Finally you saved my life Sir, Thanks to God, to this forum and to other's.

Last night i tried all your step on my device.
On the last step

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And this device can worked up again.

Whoever have problem with stucking garmin Nuvi 3790 just freeze on logo screen, just follow Mr @B1ng0 tutorial stepbystep from page 1-3 in this forum.

And finally i just can say Thank's to Mr @B1ng0, your Tutorial very helped me and saved my device.
Terimakasih. Salam dari Indonesia

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