"can't authenticate maps"
what I did: placed Goteborg_2012_10.img together with Goteborg_2012_10.unl on internal SD-card, in Garmin map.
Goteborg_2012_10.unl contains a 25-digit unlock code generated with Jetmouse (with checksum fixer)
Used FID 2419 and PID 2 in Jetmouse
device is Dakota 20 using latest firmware 4.10.
Did I forgot something?