Yes later unit so yours uses SD card, i forgot which one was which. Try using the command rrgn but with 2:/ as the path. Not all garmin units identify the media card as 1, some old nuvis [3x0 for example] and even some new 2013 nuvis use 2 for the card.
Brrrrr!....... Clear all nonvol that, i think, fills the whole nonvol memory with zeros.



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