Can you please guide me to the step by step procedure on how to update my Garmin software of my Garmin Nuvi 680?
nuvi 680
Software Version is 4.20
Audio Version: 2.20
GPS SW Version: 3.00
Bluetooth SW version: 0.00
nuvi 680
Software Version is 4.20
Audio Version: 2.20
GPS SW Version: 3.00
Bluetooth SW version: 0.00
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