In order to use the rx/tx rx35 and Devo 7e, the Devo must have a sw upgrade. According to the sol-expert web site this is a simple well described process. [/size]Yes...After a couple of hours on 'Google' I succeded i upgrading the sw and binding the rx/tx. After the binding nothing went well. I'm unfortunately not able to trigger any servo action from the Devo. There can be many reasons for this, but I gave up troubleshooting and plan to continue on a rainy day.Then I remembered that I have an old Tactic tx and and a corresponding micro rx. I never used the rx because the build-in esc has forward only mode, not of much use in a boat model.[/color]