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Reply With QuoteBecause of this, I thought you need backupOriginally Posted by kunix
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21st August 2013, 07:46 PM #81Navigation software Moderator
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It should be safe. Originally Posted by lolypop000
NVM has nothing to do with removed functionality, so I don't need it Originally Posted by lolypop000
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21st August 2013, 08:06 PM #82Navigation software expert
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21st August 2013, 11:26 PM #83Garmin/GPS Systems GMod.
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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? Originally Posted by kunix
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22nd August 2013, 06:25 AM #84Navigation software Moderator
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It looks like rrgn hanlder was completely removed, as string "Read Region" is missing.
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22nd August 2013, 08:56 AM #85Garmin/GPS Systems GMod.
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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?
Last edited by Neil; 22nd August 2013 at 09:08 AM.
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22nd August 2013, 09:33 AM #86Navigation software Moderator
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I think compiling a special boot.bin with extra capabilities is not a problem at all for Garmin.
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22nd August 2013, 11:10 AM #87Garmin/GPS Systems GMod.
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Or for you? ...
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22nd August 2013, 11:13 AM #88Member
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thank you for all the respond to my post. can advise whether i need to backup my region41 using 2.30 boot.bin?
will this backup region41 file created using v2.30 boot.bin still useful if i update my firmware. if yes, then maybe i will give it a try to backup this file just to play safe.
if no then no point trying.
Thanks in advance.
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22nd August 2013, 11:27 AM #89Navigation software Moderator
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Neil
For anyone who has the boot.bin's source code adding rrgn is almost trivial (some programming skills are still required, alas!).
For me it's a big problem, as I don't have the source code, so have to disassemble it, find ~5 important functions and install my shims on them very carefully.Last edited by kunix; 22nd August 2013 at 11:31 AM.
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22nd August 2013, 11:49 AM #90Garmin/GPS Systems GMod.
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@mong736
Region 41 contains valuable information regardless of the fw version of boot.bin used to obtain it. So yes, do the NV backup. I would obtain all regions 1 to 255. Here a kit for that using v2.30 boot.bin: [Only registered and activated users can see links. ]
@kunix
Sorry, i wasn't trying to be smart. I really didn't know how hard it would be to produce such a fw outside of having garmin's source code.'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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