+topmonkey Posted July 22, 2011 Share Posted July 22, 2011 What am I doing wrong?? I've just inherited a Garmin Oregon 450t. I have a micro SD card in it with the UK OS Discoverer Maps on and they are working just fine. There is a folder on the SD card called GARMIN and there are two files inside that folder (GMAPSUPP.IMG and GMAPSUPP.UNL) So far so good... I've downloaded TT's maps, unzipped them and renamed it to GMAPSUPP.IMG but Ive placed it in the internal memory of the Oregon in the folder called 'Garmin' (I placed it here as I thought if I put it on the SD card it would replace the files already on the SD card as they're called the same thing...) When I switch on the Oregon I can switch the OS maps on and off no problem and they work just fine, and it DOES also tell me that the TT OSM is there but when I switch it on I never see any roads on the screen at all (not even in the middle of Norwich where I presume the OSM is fine) There are some details, but nothing like it should look like at all. If I wanted to place this TT map file on the micro SD card how could I have the OS maps too if the files are called the same thing? I just want to be able to switch between OS maps and TT maps, but as I said - they don't seem to be loaded up properly even though they are on the internal memory of the device. Any help greatly massively appreciated Thanks Quote Link to comment
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