Edge 1000 has protected firmware, PGFT doesn't unlock img for it even if it results unlocked in Gmaptool.
Basecamp reads locked img from device.
The latest gimgunlock + mapsigpatch is reported to work in unlocking maps for edge 1000, other previous gimgunlock doesn't work for it.
One user gave feedback and wrote he has the locked map message in edge, but the map shows up and works normally in gps after using gimgunlock+mapsigpatch.
Mac version of gimgunlock can't unlock img for edge 1000 because it doesn't remove map digital signature edge 1000 fw checks.

sent with my phone