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

Thanks I have it working on 550T by getting unit code from Basecamp then putting that in jetmouse to generate unlock code using FID= 2043 . Then put unlock code in UNL file with map on SDcard and bingo. Great site thanks for all the info I have gleaned to get to this stage. I am now going to see if I can combine this with city navigator maps.
Note:I have tried all mentioned ways to get SD card ID but failed at every attempt. I have another laptop to have a try this afternoon.

Ocicat

Interestingly I also had a lot of problems unlocking this map. When I used the JetMouse on a Win7 (secured by Kaspersky) each calculated key failed. The same JetMouse program which has been transferred earlier from a XP PC to the Win7 PC using an USB memory stick produced correct keys on the XP PC itself.
After doing a file compare there was a mismatch by just one single byte in the exe file, no idea why this could have happened.

However, checking the resulting code by the KeyChecker is a brilliant time saving idea!

OK follow up to my previous post. I have been unsuccessful in all ways to read my SD card ID's via PC/laptop. However using Catymag's info on my NUVI 1490T I have been able to find the serial of my two cards, and using this in JetMouse I unlocked both cards for GB Discoverer without any hassle, and can see OS1:50,000 maps in both my 62S and 550T. The cards are interchangeable between the two units without issue.
I'll add my thanks now I'm here :-)
Ocicat