A new activity is added (Top panel > Phone Activities > New activity)
Screen flickering starts.
Activities windows is closed, flickering continues.
After a couple of minutes, shell crashes. In plasma shell logs, I can see:
KCrash: Attempting to start /usr/bin/plasmashell from kdeinit KCrash: crashing... crashRecursionCounter = 2 KCrash: Application Name = plasmashell path = /usr/bin pid = 1922 KCrash: Arguments: /usr/bin/plasmashell -p org.kde.plasma.phone KCrash: Attempting to start /usr/lib/arm-linux-gnueabihf/libexec/drkonqi from kdeinit QSocketNotifier: Invalid socket 8 and type 'Read', disabling... QSocketNotifier: Invalid socket 17 and type 'Read', disabling...