Hello and sorry you're having problems.
In order to do this, you will need to plug your GPS into your computer using the included USB cable and then click on the link below and follow the instructions as outlined on that page:
If for some reason you do not have the cable to plug the GPS into your PC and would like to purchase one, that cable is available at the link below for purchase:
If you need further assistance let me know. Before you go, PLEASE DO click at least a 3 STAR RATING, at the top of your screen. That is how I am credited for my efforts by the site. You can follow up any time as needed at no additional cost.
Do you need further assistance with this?
I'm not sure if you're having problems replying? Please don't try to reply to the e-mail the site sends you. Instead use the link to get to the site page and reply here if you need more help.
You have the GPS plugged into your computer?
I posted the link to the USB to PC cable you will need to use to tether the GPS to your PC above (scroll up the page to see all replies). Did you see that link? Or are you saying you already have the GPS plugged into your computer and it still won't update?
Let me know if you need more help. Also, could you please click a POSITIVE RATING (3-5 stars at the top of the page) and click SUBMIT so that I am credited for working with you today?