GarminNuvi wrote:colts18 wrote:hi, can someone help me , how to install map in empty sd card , I try to reinstall map using garmin express no luck , can someone help me please? thank you.
Tell us what device you have and weather it has Lifetime map updates.
Hey GarminNuvi, I am trying to install the maps to my Zumo660. I have previously downloaded and installed maps before but been some time and have forgotten the steps.
I have 2020.1 and Top v4 installed currently. I downloaded the files for 2025.20 and Topo v6, but kinda stuck.
- I think previously we used to download the maps and then unlock them. I can see the downloaded file for gmap3d.img but my device has both the .img and .sum files, do I just replace the .img file and leave the old .sum as is for the 3d file?
- I forgot how to maintain both city and topo maps in the device, since both of them have the gmapsupp.img files. The new files I downloaded has the city map at around 500mb and the Topo map at around 3.79GB. If I copy it over, the topo/city nav files will overwrite each other.
- Is there a way to have the Topo map read off the SD card instead of the Device storage?
- I think we had to install it on Basecamp first, and then to device? I have forgotten the way to do it, and using Map Product Manager is asking for unlock code.
- Do we need any other files? gmapprom.img?
Thanks!
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