GPS Repair Problems? Ask a GPS Technician for Answers ASAP
Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
You need a garmin specific data cable, and this is the cheapest place to get one.
Thats the easy part. Now, so I can give you specific instructions on how to update, I need to k now whether you have a Mac, or a Windows PC you will be using to update the Garmin.