Thread: Nüvi 3790

Originally Posted by Neil

@Choco
As it's been shown that your device's region 41 doesn't delete or erase successfully (and therefore likely cannot be written to either) it's of more concern that there's other problematic data rather than some outdated data related to earlier maps.

That's how effective Neil is. Notice, when I perform a wipe of non-volatile memory:
The wallpaper disappears.
The configured vehicle also returns to factory settings.
The option not to manipulate the User Interface also returns to factory settings.
But the saved places, even though I have deleted them from the (saved places) option, when I do a wipe of the non-volatile memory, they reappear. THEY NEVER BE DELETED.

In principle, I think that the traffic trend that appears in My Maps does not generate any problems in operation, just as you and Garman say.

Originally Posted by Neil

Does GarminDevice.xml properly update after each boot-cycle? Try moving it manually to a safe location on your PC and then boot the device to check it's properly re-created and compare the two files if it is. If it's not recreated properly on boot then the device certainly can't even read data in region 41.

Neil, I did what you told me and it works fine. I think that by deleting the GarminDevice.xml file and restarting it, when I connected to GE, that's when it gave me a complete update of everything I needed. I explained it in post 33, remember?
[Only registered and activated users can see links. ]

Anyway, I deleted it again and indeed as soon as I reboot, a new GarminDevice.xml file is generated. Look at the image, the files that start with MM are those from previous times.

Spoiler: [url=https://postimg.cc/BjYqhL8J

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I have compared the file it generates and the one I previously renamed starting with MM and they are identical.

Spoiler: [url=https://postimg.cc/WDSTDDvB

[/url]

[Only registered and activated users can see links. ]]

Originally Posted by Neil

About Audible, there are only a couple of short sample books and a Welcome audio in that folder, and you'd need to add books in .AAX file format to listen to more. Nobody ever seemed to use it much to listen to audio books on Garmin devices anyway in my experience but if you want the original files here's the zipped folder: [Only registered and activated users can see links. ]

Thanks Neil for the file, now I have been able to check how the Audiobook app works.

Spoiler: [url=https://postimages.org/

[/url]

[Only registered and activated users can see links. ]

[Only registered and activated users can see links. ]]

Originally Posted by Neil

BTW, the .SUM extension is indicative of checksum files and they're not really needed even for current files so either can be deleted safely or just left there - even for old unused removed files - they won't harm anything.

Thanks for your explanation, I'm more calmer.

One question: What video files can I watch in the video player? I have uploaded a .mp4 video file and the video viewer app detects it, but tells me that it cannot be played.

A hug

Originally Posted by Choco

............
Una pregunta: Qué archivos de vídeo puedo ver en el reproductor de vídeo? He cargado un archivo de vídeo .mp4 y la app de visor de vídeos lo detecta, pero me indica que no lo puedo reproducir.

Un abrazo

Please post in English only. I guess you just forgot to run the above final paragraph thru a translator:
"One question: What video files can I watch in the video player? I have uploaded a .mp4 video file and the video viewer app detects it, but tells me that it cannot play it. A hug"

Yes, it's as you noted in the post following. (Best not to do that either, use the edit function to add info to the preceding post if it hasn't already been answered). The video player can use files other than MP4 such as WMV. Additionally, i recall AVI is also supported. Certainly MP4 files must be H.264 codec and all types of files must be 720*480 resolution or they won't play - or perhaps that's only a maximum resolution and they can be less, just not greater pixel size.

As for region 41 clearing, it's plain to me from your consistent explanation of retained data and now confirming the recreation of a new GarminDevice.xml that:
(i) it's not really being cleared of "delete-able" data (and neither can the entire region be erased), however;
(ii) the device can still READ it or the XML would not be rewritten properly on re-boot.

As i've said before, if there is 'poisoned' data in 41 from your previous firmware manipulations, and there most likely WILL be, should that be accessed by the device in the future it might at worst 'kill' it and it'll never power on again, or it might just cause an annoying glitch where it'll freeze or re-boot spontaneously or it'll even soft-brick itself. To check whether it's also being successfully WRITTEN TO you'd need to change something obvious and re-boot to then re-compare the old and new XMLs.

Here's 34xx help files, unzip and add the Help folder into the root of the internal memory: [Only registered and activated users can see links. ]