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[mkgmap-dev] Recent Garmin Firmware "cannot authenticate maps" when they are unicode

From Gerd Petermann GPetermann_muenchen at hotmail.com on Sat Sep 16 06:57:47 BST 2017

Hi Felix,

I understand that tools like this exists, but I don't think that we should add it to the documentation of mkgmap.
I would not even dare to click on a link for it because of the higher risk to download some malware.

Gerd
________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Felix Hartmann <extremecarver at gmail.com>
Gesendet: Donnerstag, 14. September 2017 10:50:55
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Recent Garmin Firmware "cannot authenticate maps" when they are unicode

I would rephrase it to "Note that neither very old devices (introduced up to around ~2011) - nor newer devices (introduced ~late 2015 or newer) can show unicode maps. Newer devices can however mostly be made compatible by using grey market firmware. (actually the firmwares that are designed to circumvent new garmin devices to show "pirated" copyrighted garmin maps will also mean that those devices will be able to show mkgmap unicode maps. In my opinion in Europe it would be legal to use such firmware if you simply want to show OSM based mkgmap created "non pirated" maps - while illegal if used to show "pirated" garmin maps.
The only new devices for which this firmware is not available/ or better the firmware patcher for this does not work are some of the garmin smart devices like the Fenix watches and I'm not sure if it works on all automotive devices like Zumo or Nuvi.

So maybe in this firmware patcher some clues could be found (or better if the author would release the relevant clues/sourcecode on request)?

(just google garmin firmware patcher to find it)

On 14 September 2017 at 07:47, Gerd Petermann <GPetermann_muenchen at hotmail.com<mailto:GPetermann_muenchen at hotmail.com>> wrote:
Hi all,

The documentation and help already contains this
--unicode
        This is equivalent to --code-page=65001. Note that
        some devices don't support unicode maps produced by mkgmap.

I added the hint while working on the optimize-index branch, it is in the branch since r3968.
Please suggest improvements if this is not enough.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgmap-dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Felix Hartmann <extremecarver at gmail.com<mailto:extremecarver at gmail.com>>
Gesendet: Donnerstag, 14. September 2017 00:14:34
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Recent Garmin Firmware "cannot authenticate maps" when they are unicode

this can go into documentation not the compile process itself I think. The warning should be for real warnings that happen because of bugs/problems.

On 13 September 2017 at 21:57, franco_bez <franco.bez at web.de<mailto:franco.bez at web.de><mailto:franco.bez at web.de<mailto:franco.bez at web.de>>> wrote:
One last thought:

maybe it's not a bug in mkgmap, and maybe there is no way to fix this on our
side.
But in any way there will be more and more people affected as the number of
new Garmin devices increases.

So we should issue a warning message when maps are built with the unicode
option.

Something like:

"The use of the option unicode will cause problems on recent Garmin devices.
Consider using another encoding instead."

What do You think ?

Ciao,
 Franco



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Felix Hartman - Openmtbmap.org & VeloMap.org
Schusterbergweg 32/8
6020 Innsbruck
Austria - Österreich
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Felix Hartman - Openmtbmap.org & VeloMap.org
Schusterbergweg 32/8
6020 Innsbruck
Austria - Österreich


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