Quote Originally Posted by madmax2020 View Post
Boss, i have this City Navigator North America 2011.40 on my garmin nuvi1300. Can i just delete all files of my previous City Navigator North America 2011.40 and clean install City Navigator® North America NT 2012.20. Do i need to download all of these files (unlocked) and put it on my SD card?
You can delete old files or back them up. You can also just add new files to the sd and select the correct map in the garmin or replace the existing map in main memory, assuming you have sufficient memory....Take a look at the tutorials - [Only registered and activated users can see links. ]