All garmin devices sold first since 2016 block free unicode maps. So it's not the maps by mkgmap are corrupt - but garmins copyright protection is wrong. Usually the message was better however saying maps cannot be unlocked (but haven't been locked from the start of course)

On Thu, 11 Jun 2020 at 07:02, Gerd Petermann <gpetermann_muenchen@hotmail.com> wrote:

Hi Enrico,

you may try to install the map via Basecamp/Mapinstaller. I would not be surprised to find that Garmin reduces the support for the old format. It may even happen without intention.

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Enrico Liboni <eliboni@gmail.com>
Gesendet: Mittwoch, 10. Juni 2020 11:07
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Maps are corrupt when using --code-page=65001 [Zumo XT]

Gerd,
 the Zumo XT is the latest Garmin product and it supports NTU maps - so, yes I suppose unicode is fully supported. Is there a way for me to double-check that?

Thanks!

>From Gerd Petermann gpetermann_muenchen at hotmail.com <mailto:mkgmap-dev%40lists.mkgmap.org.uk?Subject=Re:%20Re%3A%20%5Bmkgmap-dev%5D%20Maps%20are%20corrupt%20when%20using%20--code-page%3D65001%0A%20%5BZumo%20XT%5D&In-Reply-To=%3CAM0PR08MB54105BC52C8897DC2BB8FF879E830%40AM0PR08MB5410.eurprd08.prod.outlook.com%3E> on Wed Jun 10 07:37:29 BST 2020

Hi Enrico,

are you sure that the device supports unicode maps? Note the last sentence in the description of the code-page option:
--code-page=number
    Specify which international character set is to be used. Only 8 bit
    character sets are supported so you have to specify which code page you
    want to use. It is entirely dependent on the device firmware which code
    pages are supported.

Gerd

On Wed, Jun 10, 2020 at 12:21 AM Enrico Liboni <eliboni@gmail.com<mailto:eliboni@gmail.com>> wrote:
On my shining new Garmin Zumo XT I can't seem to be able to build unicode maps, when I start the device I get "Maps are corrupts and connot be used."

I'm using the latest and greatest mkgmap r4525, fresh pbf from geofabrik -  to reproduce:

wget http://download.geofabrik.de/europe/malta-latest.osm.pbf
java -jar ./mkgmap.jar --code-page=65001  \
 --family-id=10030 --product-id=1 --route --bounds=bounds.zip \
 --precomp-sea=sea.zip --gmapsupp   ./malta-latest.osm.pbf

Anything I can try? --code-page=1252 works as a charm

Thanks!
Enrico
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--

Felix Hartman - Openmtbmap.org & VeloMap.org

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