How to install Flexi 10 Program for Other Feature You may Visit our website diyph.com please comment rate. SAi FlexiSIGN-PRO 10 FlexiSIGN-PRO Flexi10 sets a new industry standard with robust new features geared toward maximizing production, all while striving to create a sustainable fut. Nov 28, 2013 - Please follow this simple guide to install USB drivers for our vinyl cutter. Windows 7 Pro / Enterprise Offline Activation Mak Key. If your COM Port Number is above 10 include 10, you need to change it to Under 10, please check the port setting as shown. CO.ZA V-Series™ High-Speed USB Vinyl Cutter with 800mm Working Area with FlexiSIGN™ Software.