Welcome to Justanswer.com, my name is ***** ***** I will do my best to assist you.
To update the device, and get it working properly. You need to have either a windows or a mac computer.
Which one do you have?
Also, would you prefer to have me connect to your computer from here. And go through the reset, repair and software + map update process on screen for you? We can also speak on the phone as part secure remote connection service.
Or, do you want me to guide you through written instructions only?
Thank you for your response,
Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.