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The easiest way to put the whole of Europe on the SD card is to copy the garmindevice.xml from your device and place it on the SD card in a folder called Garmin.
Unplug the device and plug in the SD card into your PC, this is now a clone of your device but with plenty of storage. Use Garmin Express to update the clone.
After the update has completed you will see two map files East & West (possibly gmapprom.img + gmapprom.unl & D0323420A.img & D0323420A.unl) in the Garmin folder ,change their names to gmapsupp.img & gmapsupp.unl gmapsup1.img & gmapsup1.unl.Plug the SD card into your device.
Spoiler: Select Region
The date & size of the gmapprom.img on your device looks like a regional map, the gmapsupp.img UK & ROI you created with Basecamp?, the best way to identify .img files is to use the program [Only registered and activated users can see links. ] you will be able to see what the old maps showing in your device are and remove them safely.
Spoiler: JaVaWa device manager
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2nd March 2022, 10:10 PM #7VIP Master
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Last edited by Garman_Nuvi; 3rd March 2022 at 06:45 AM.
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