How to delete old pre-installed maps

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Joined: Wed Sep 17, 2008 2:17 pm
Location: Bukit Batok (Nuvi 3790v)

How to delete old pre-installed maps

Postby EastMushu » Sun Aug 19, 2018 8:55 pm

***For newer Garmin devices where map data folder is hidden***

In case anyone gets irritated by nag screen to update old pre-installed maps and wants to remove the old maps, here's how to do it:

1. Start NUVI by itself and go to Volume Screen.
2. Press the upper right hand corner of screen for 10 seconds.
3. The Developers Screen will pop up
4. Scroll down to MTP SETTINGS
6. Shut down NUVI and connect to PC
7. It should now connect in mass storage mode.

As an alternative to step 1 above, you can bring up the Nuvi's "dashboard" screen, then press and hold the speedometer for about 10 seconds to access the developer screen.

Got this from

Be careful of what you delete though!

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