I've been using bbbike org maps (open street maps) with extracted areas under 50mb to download to my edge 520 for navigating, but recently when i try to install a new map for a new area the unit is not able to unlock the map. Has something changed in the 520 firmware or am i doing something wrong? The maps extracted and downloaded I am renaming as gmapbmap.img. They used to work fine till a few months ago.
Message from Wolfram who runs the bike org site:
There are known problems with Unicode (utf-8) on garmin devices. Can
you please try this us-ascii extract? [gmapbmap.img]
I did, and it worked.
So, how does somebody get a us-ascii versus at utf-8 extract (other than asking nicely for Wolfram to do it - which seems like it would become a bit difficult over time)?
Answering my own question. At extract.bbbike.org, set "format" to "Garmin OSM (ASCII)". "Garmin OSM" and "Garmin Openfietsmap Lite" did not work for me.
