Do NOT Update to Basecamp v 4.7.0!

UPDATE - see here for Instructions:

Sorry this is just a quick message - but because it's kinda important and may cause a lot of confusion - I send out this short newsletter.

 Garmin released a new version of Basecamp - 4.7.0 - in order to remove many features that were not in accordance with the GDPR regulation. Actually it's not that 4.6.2 is wrong here - it's that there were a few web services - that Garmin switched off - and those were interlinked into 4.6.2 - so that actually in 4.6.2 some functionality is not working anymore - I could on a quick check however not discover any actual difference otherwise in relation to the GDPR regulations - so 4.6.2 is no different in this regard to 4.7.0 - well and new privacy page/EULA of course).

Now the problem is - Basecamp 4.7.0 also ships an updated version of Garmin MapInstall - and that version is broken in so far that it does not send any maps in .img format anymore! This also applies to original garmin maps. I have some old Garmin Topo Austria and Garmin City Navigator map - that cannot be sent anymore. Also any of the garmin demo maps converted into .img format from gmapsupp.img do not transfer anymore.


If you are a Windows user and upgraded to 4.7.0 you have 3 choices:

a) Downgrade to Basecamp v 4.6.2: it can be found here:

ATTENTION - you need to first deinstall Basecamp, then Install Basecamp 4.6.2. If you simply install 4.6.2 without deinstalling 4.7.0 Mapinstall is not correctly downgraded.

b) download the OSx (Mac) version of all openmtbmaps/velomaps in .gmap format. You can install them by placing them into the C:\ProgramData\GARMIN\maps\mtbCOUNTRY.gmap respectively C:\ProgramData\GARMIN\maps\veloCOUNTRY.gmap and better read the OSx tutorial too: respectively for Velomap users here:

c) do not send any .img format maps until Garmin releases a new version without this bug.

d) Use the plain old Garmin Mapsource for sending maps. Yes it still works if you know what to do - just note that it does not check any maps installed - so do not send maps twice. Also it cannot like MapInstall overcome the 4GB limit by splitting up maps that you are sending. Else of course it cannot correctly show the contourlines - but sending maps will work.


Actually right now only a part of the overview map is sent - it would be nice if Garmin could send the overview maps in general too - as right now they are only used on Desktop. Would actually speed up the GPS devices a bit - especially if you have no activated Basemap on your device.


Besides this: I'm still working hard on improving the contourlines just another time, and fixing some bugs (e.g. in the Europe continent map right now in the north of Norway/Sweden some contourlines/DEM data is missing). Should not take long anymore. Expect a new release of the Europe map in the next 10 days (also worldwide all maps will come soon with even better DEM/contourlines).


Oh and of course I also updated my Privacy/Rules according to the GDPR rules now effective. Actually nothing changed except that I explained a bit better which data I gather (which was very easy to see/find out anyhow).

In effect I do not store (except temporary logs on my server) any data from users except the one I'm forced to store for invoice creation and making sure you can login to your account. (IP address, email, name, address) and yes I use google analytics in anonymized mode. Still due to great wisdom in actual IT knowledge of our chosen EU representatives and local governments the privacy rules have become long and tedious to read....

If I could I would not store addresses at all - but well VATMOSS EU regulations force me to do so. So nearly all of the personal data I gather, I gather only because just of another super stupid EU regulation.

59 comments to Do NOT Update to Basecamp v 4.7.0!

    • Joachim

      – Fixed installing 3rd party maps

      • extremecarver

        thanks, I’ve noticed those new downloads two days ago too. I changed some things on the website and for the gmapsupp.img downlods (see news) now but still need some time to clean up the now not necessary warnings on the homepage. Also I’m not sure if Basecamp 4.8.6 for OS x really runs stable in translated versions (I do hope so). Seems finally Garmin got back on track after the horrible 4.7.x upgrade (more or less 17 months later). Maybe they decided it’s too much support work for them. (also everyone knows – that it was not only 3rd party maps – but also all .img format maps including their own (yes garmin changed all maps to gmap format in 2012 or 2013 for Windows too. Their own map older than that were also affected).

  • Gunther Hay

    hallo ich habe vor Tagen 35 € per Kreditkarte überwiesen als user openjh bis jetzt habe ich keinen Mitgliedszugang und werde eher auf meine alte abgelaufene Mitgliedschaft unter dr.hay hingewiesen.
    Günther Hay

    • extremecarver

      Hallo Günter, hast du eine Rechnung bekommen? Ich kann von deinem Namen oder deiner email keine neue Zahlung finden. Ich nehm an die Zahlung ist nicht durchgegangen! Wenn du direkt per Kreditkarte zahlst – musst du aufpassen dass du NACH Eingabe der kreditkartendaten und bestätigen mit Add 35 Euros – zurück im alten Fenster noch deine Adresse eingibst – sowie mit dem gelben Button die Zahlung abschließt.

      lg Felix

  • Cubeams130

    Hallo Extremcarver,

    kann ich nun wieder BC Version 4.7.0 installieren?
    oder soll ich noch warten?

    Besten Dank schon mal und viele Grüße


    PS hab gerade für “lebenslänglich” bezahlt. Vielen Dank für die tolle Arbeit.

    • extremecarver

      Nein – erst Basecamp 4.8.x ist korrigiert – aber dass gibt es nur für Mac OSx bisher (und vermisst natürlich weiterhin die Funktionen die wegen GDPR Umsetzung wegfielen weil man nicht weitere Zustimmungen zu Datensammeln dritter Provider einholen will).

  • laccoro

    Hello, BaseCamp MacOS now available.
    Any news? Is it safe or same behavior of 4.7.0?

    • extremecarver

      I actually do not know! You can give it a try and report back. I can see that the MapInstall version is higher – and not anymore 4.2.0 – so there is a chance it’s fixed actually. (because of that problem I now also offer all non continent maps as gmapsupp.img download).

Leave a Reply