'Update failed' Now is not recognizable via PC USB. Try to input an address and GPS says 'Map data is not available'. I have tried all of the follow:
2 USB cables
2 computers
2 different windows versions
Changed to Mass Storage Mode
Reinstalled USB drivers
NOT using a USB hub
All Garmin software fully updated
All I want to know is if the unit can be updated via the SD card slot and how I do that. Unit is NOT accessible via USB -will only charge. Does not show up in Device Manager.
nuvi 2595 C2p2 A V8 8GB 128MB N TI
Software Ver 8.30