How do I unregister a powermeter? October 02, 2019 17:01 Updated Follow This can be accessed in the PRECISION Settings tab. Please see the User Manual for the 4iiii app. Related articles On the previous app there was the ability to turn on "3rd Party App" compatibility but I can't find that function in the new app. What do I do? Why do I see cadence readings and no power readings (or extremely high power readings)? Is there a free 4iiii training app that works with Fliiiight? Comments 0 comments Please sign in to leave a comment.