Keep trying but first be sure you have Garmin USB drivers loaded: [Only registered and activated users can see links. ]. Sometimes an error will appear 2 or 3 times and then it will flash fine. If you also wish to try putting it into pre-boot mode the other way: Have Updater open then with your nuvi fully OFF [not in standby], hold the top LH corner of the screen, plug in the usb and immediately press 'OK' when the unit's details appear in the field next to 'USB Device'. Keep holding the screen unit finished or at least until 'Loader' or 'Software loading' appears on the screen.
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