Thread: Garmin GB Discoverer 1:50K - Full Coverage (2.00)

It works on a Dakota 20.
But it doesn't work on an Oregon 450 (latest firmware 3.80). I'm 100% the generated UNL file is correct.
I read somewhere about a new security method Garmin is using for new maps and that devices with recent firmwares are checking on this. Something about a certificate file (.gma I think) you also need for recent maps
Could this be the reason?

I used Jetmouse 1.5 with checksum check fix.

Originally Posted by redcap_be

It works on a Dakota 20.
But it doesn't work on an Oregon 450 (latest firmware 3.80). I'm 100% the generated UNL file is correct.
I read somewhere about a new security method Garmin is using for new maps and that devices with recent firmwares are checking on this. Something about a certificate file (.gma I think) you also need for recent maps
Could this be the reason?

I used Jetmouse 1.5 with checksum check fix.

I have the same problem with Dakota 20 software 3.30 (can't unlock map).

@demontazor: here it work perfect, also on Dakota 20 software 3.30 .
@Ballebar: it works also on Oregon 450 software 3.80 (latest). I forgot to paste one character of the GPS unit ID in Jetmouse.
Thanks!