Thread: How to revert nuvi 250W to factory default?

Originally Posted by SanFrancisco

I cleared nonvol this way ..........

Actually that is only a 'hard reset'. Clear nonvol is available in the hidden menu behind speedo in later devices, but in Series 2 it only gives nonvol information. In any case that's not the problem, it's exactly as said in Post no. 4 above. You may find that the dealer reference comes from a small OEM map seeing that screenshot you posted is shown after 'loading maps' is displayed on start up. If no dealer POI is present, look for a quite small map likely named gmapoem.img or maybe gmapprom1.img, open in GMapTool to see details before removal.