Thread: Clear Nonvol

Clear the non-volatile memory:
Speedometer -> Developer Info -> Non-volatile -> Clear non-volatile.

Clear non-volatile memory probably is more complete than Master reset
Garmin's Nuvi's do not have a hard drive. Everything is stored in memory.
NVM or non-volatile memory,it is Nuvi memory that can retain some stored information even when not powered. Some files, like the Operating System files, are stored in non-volatile memory and others like POI files are stored in volatile memory that is kept alive by the battery.
Removing the battery will completely erase everything in volatile memory-
Clearing Non Vol erases all the files added from your usage since you powered it the first time.

Operating Syatem Files that I updated since I bought it are stored in the flash memory, I can see them.
I didn't think that will be something to do with operating system - erasing something like that will render the device unfunctional. They won't have that in a menu...

I was thinking that is has to do something with the "TCM" settings that are memorized in the receiver's nvflash?

Caution: clear nonvol deletes the dialed address, favorites, and personal data.

Clear Nonvol for navigators nuvi 1xxx and 30 40 50:

1.In map screen, go to the speedometer screen:

2.Press and hold for 10-15 seconds on the speedometer image:

3.Click menu Developer info:

4. Select nonvol available:

5. Click Clear Nonvol

Following this procedure will have to perform the initial configuration of the navigator.



Clear Nonvol for navigators nuvi 2xxx and 3xxx:

Procedure to the point 3 coincides with the previous one, then do the following:

Select nonvol statistics:



In the upper left corner, click "menu":