The forum post provided a link to the Blaupunkt website, where John was able to download the software update. The file was quite large, and John had to wait for what felt like an eternity for it to finish downloading.

USB update:

: It is highly advised to create a full backup through the Naviextras Toolbox before applying any changes to the map card to prevent the loss of pre-installed license files. Troubleshooting Software Errors