Garmin GB Discoverer™ 1:50k v4 - Full Coverage

I can't extract them, WinZip says - Unexpected error, do you know what might be the problem please?

liumas Reviewed by liumas on 29th July 2020. Garmin GB Discoverer™ 1:50k v4 - Full Coverage Garmin GB Discoverer™ 1:50k v4 - Full Coverage https://static.garmincdn.com/en/products/010-C1043-00/g/cf-lg.jpg Explore all of Great Britain with detailed 50K topographic and road maps. Garmin GB Discoverer 1:50K contains full 1:50K scale Ordnance Survey Landranger map coverage for the whole of Great Britain. Plus, with NAVTEQ road data and points of interest, you'll get turn-by-turn directions to your destinations. GB Discoverer's detailed topographic data includes terrain contours, Rating: 5

Please re-up anyone if you could be so kind, the unlocked ones

Thanks, I had not come across ImgTool before. It confirms the FID as 3561 which is the number given in the National Parks thread. I put a couple of the coordinates from ImgTool into google and they looked to be in National Parks.

UPDATE: ImgTool has a picture viewer to see small segments of the map, these also look to be in National Parks.

I am unsure which version it is, you will have to check that for me. I do have several GB versions. I think it is the correct one as far as I know. All my maps are unlocked but you can always lock it do a device with the right tool. I do know that most "modern" GPS units from Garmin do not accept unlocked maps unless you lock it to you unit. But some do also need firmware hacks. I know nothing about that others will have yo help you out.