This is because cancelling a TBR causes an alert on the pump which causes a lot of vibrations.
You are encouraged to also enter your experience and thereby help others (these projects are all about paying it forward). Please be aware that this is not complete list and reflects personal user experience.A list of phones can be found in the AAPS Phones document.With LineageOS 14.1 it has to be a recent version from at least June 2017 since the change needed to pair the Combo pump was only introduced at that time.As of AndroidAPS 3.0 Android 9 is mandatory. A compatible phone: An Android phone with a phone running LineageOS 14.1 (formerly CyanogenMod) or at least Android 8.1 (Oreo).(Roche sends out Smartpix devices and the configuration software free of charge to their customers upon request.) A Smartpix or Realtyme device together with the 360 Configuration Software to configure the pump.A Roche Accu-Chek Combo (any firmware, they all work).Useful resources to read before you start.Frequent questions on Discord and their answers.Time adjustment daylight savings time (DST).Hints and Checks after update to AAPS 3.0.
What is a closed loop system with AndroidAPS.