Hi there! The SD slot gives you the option of adding larger maps like the North America map which is more detailed and needs more storage space than the standard USA and Canada maps. You can't use both the internal drive and SD slot at the same time though. I loaded the North America maps on my SD card with extra POI's and use that instead of the internal storage. Hope that helps!
I should have asked this the first time - how do I get the North American Maps?
I try to use SD card to my new TomTom One V4, it just keep rebooting, until I remove the SD card.
When copy all from internal memory to SD card via card reader, it boots as normal with the SD
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.