Hi i have just done a travelpiolet lucca 3.3 it may or maynot be the same?
but you can give it ago.
you will have to open the unit first check this forum you may find out how here some were.
then fined your mounted volume init or in mine there was a file named lucca yours may be named
some think simler save this to your computer you may need it hope not.
then delete the file. replace it with igo folder then rename it as the name of your old file.
then open file fined the igo app exe and rename it the same as your old one.(lucca or what ever)
close and run it works on 3.3 so can only try it if it dont work then just replace your old file and your back to square one.
hope this helps . good luck Dave. PS sorry for my english i am english just thick