How to backup Nuvi NV (region41) with sd

**kunix** · 21st August 2013, 06:31 PM

lolypop000
Do you know any Garmin pages where SG/MY (and other asian) firmwares are listed?

Code:

Please Login or Register to see the links

What I do hate in Garmin is that their firmwares can't be downloaded in a unified way.

**lolypop000** · 21st August 2013, 07:00 PM

I search for SG FW like this:

Spoiler: CLICK

If you need some SG FW let me know and i can search it for you

**kunix** · 21st August 2013, 07:09 PM

Thanks, I wanted to scan firmwares automatically. Apparently, I can do this by parsing pages like this one

Code:

Please Login or Register to see the links

**lolypop000** · 21st August 2013, 07:30 PM

Found command for SG 3560

Spoiler: CLICK

**kunix** · 21st August 2013, 07:46 PM

Originally Posted by lolypop000

I hope kunix will tell if is safe to use boot.bin from FW 2.30 for scan 3560 SG NVM

It should be safe.

Originally Posted by lolypop000

I also hope that if @mong736 scan NVM that he will send NVM backup in kunix PM, maybe kunix find out why is rrgn command removed from new FW

NVM has nothing to do with removed functionality, so I don't need it

**lolypop000** · 21st August 2013, 08:06 PM

Originally Posted by kunix

I wonder what's so important could be inside your device that Garmin doesn't want us to dump? Or maybe they're just closing security holes...?

Because of this, I thought you need backup

**Neil** · 21st August 2013, 11:26 PM

Originally Posted by kunix

........ I wonder what's so important could be inside your device that Garmin doesn't want us to dump? Or maybe they're just closing security holes...?

But if we can't dump, neither can they. They've certainly removed the rrgn command, but have they removed the function entirely? There are still instances of xrgn & ergn in v3.0 boot.bin but i haven't looked further. Is it possible they have disguised the dumping command in this fw somehow?

**kunix** · 22nd August 2013, 06:25 AM

It looks like rrgn hanlder was completely removed, as string "Read Region" is missing.

**Neil** · 22nd August 2013, 08:56 AM

Any chance that it's just a cock-up by Garmin? I suppose not, seeing it's also missing in v2.70. It really does seem implausible that it could be 'accidentally left out' even once, and seemingly impossible in 2 consecutive fw versions. But it still begs the question as to how they would be able to do it, surely the Garmin techs still need to dump regions and not just 41? Edit: By that i mean without downgrading to v2.30 or using a specially doctored 'service ldr.bin' with the rrgn command written into it?