I used the Updater that came with the Clix 2 and it was very easy to install the to update from 1.07 to 1.10. I followed the instructions which did not require you to reformat the Clix 2. The 1.10 firmware is on my Clix 2 as confirmed by the System Information and the Clix is working just fine. Any changes that the upgrade to 1.10 made are completely transparent.