Hallo to all please i need an advice According to aliente ksuite there are 3 versions of cat Adem 3. HW 1, 2, 3. in photos is clearly see HW difference, but my advice sounds is there an option to upload sw to the same hw but from another designation model? Is it going to reset the unit to look like a test and allow it to record everything from the same hw type? Because CAT ET often reports that you can not upload another sw. What is it affected? Serial number in eprom? It's for study purposes. Thanks a lot for info. Michal.