It is imperative to please uninstall any previous versions of T4A before installing newer T4A Maps. The GPS Map Installers may throw all the files into a different directory on the PC and then BASECAMP and MapSource gets confused. But this can easily be avoided if the customer just uninstalls all previous maps of the same region/map and reinstalls.

How do I uninstall T4A Maps?

From your PC: Please access any old T4A map versions on your PC that you are now replacing via your Control Panel – and uninstall them from your PC! Use the control panel or access your application list under settings.

From your GPS: If the new T4A GPS map that you wish to install, is on your GPS unit, but in an older version, rather uninstall it from your GPS unit. Steps are here below.

UNinstall T4A Maps from your GPS unit #

Please take care NOT TO uninstall your Garmap/City Navigation maps!

Since your GPS unit is now connected to your PC – Open MapInstall or BASECAMP and initiate the Map Install function from within BASECAMP (ie. Go Maps/Install Maps). You will notice:

• Your GPS device will be picked up
• It will show the list of maps that it picked up in BASECAMP that can fit onto your GPS unit
• Click on “Customize” to continue…see below

See below: Now you can customize your install to your GPS unit:

• Keep your city navigation maps (garmaps) ticked so that you don’t loose them.
• Untick all T4A maps / T4A Maps to be removed.
• Then click on “Continue”

Take note here in the next screen – you will install some (ie. your city navigation) and remove some (ie. the T4A maps). You will notice which maps will be:

• Installed
• Removed

Click on “Install” to continue. This will remove the maps you have unticked.

When the installation is done, you will see this screen, click on “Finish”.

If you switch your GPS unit on now – go to your Map Info: you will notice only the maps that you did not remove in the “uninstallation process” are still there.
There are no T4A Maps – as they have been uninstalled.