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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 Thu Sep 14 06:47:43 BST 2017

Hi all,

The documentation and help already contains this
        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.


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 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>> wrote:
One last thought:

maybe it's not a bug in mkgmap, and maybe there is no way to fix this on our
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

Something like:

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

What do You think ?


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