Quote Originally Posted by steveor View Post
Letting the device sit with the battery disconnected did not resolve the problem. The nuvi just goes into mass storage mode instead of pre-boot no matter what I do.
Maybe it's because of some hardware problem?
Quote Originally Posted by steveor View Post
What is NV?
NV is a region in flash chip where firmware stores lots of info. Also while in factory it's programmed with your UnitID. Pre-boot mode issues are not related to NV. You can erase it completely and pre-boot would still work.