Thread: TOPO Austria v4 PRO

Originally Posted by Cnfhbr

Yes, this map contains additional protection (Map Signatures) and it will not work after conventional unlocking on the newest devices (like, nüvi 55/56/65/66/25x9/26x9, zūmo 590, GPSMAP 64, Edge 1000 etc.).

On what data is your analysis based that the map has a "Map Signature", and where/how we find it in the img-file? Can that be patched ?

Originally Posted by pietu

maybe need be carefull with another old devices also, when new firmware coming ????

My Oregon 600 with the latest firmware (software version 4.10, as of July 2, 2014) works fine with CN 2015.10 and this Topo Austria v4 (both has a Map Signature ?) . So no problems at this moment on that device.
Maybe Garmin has only built into the firmware of the 64-serie something to test the "Map Signature", and look at this forum how we respond to it, before they change the firmware for the other outdoormodels.