Template:FriendlyCoreRemoveQt
From FriendlyELEC WiKi
Execute the following commands:
su root cd / rm -rf usr/local/Trolltech/Qt-5.10.0-rk64one usr/local/Trolltech/Qt-5.10.0-rk64one-sdk usr/bin/setqt5env* usr/bin/qt5demo etc/qt5 rm -rf opt/{qt5-browser,Qt5_CinematicExperience,qt5-multi-screen-demo,qt5-nmapper,qt5-player,qt5-smarthome,QtE-Demo,qt5-qml-image-viewer,dual-camera}