Yep that worked. Take your time. dpkg --list now results in: ii system-ui 1.2.24-2+0m7 Various system user interfaces. Wouldn't that signature check problem prevent a SSU to PR1.3? Maybe you should warn people in the first post who don't know how to flash or don't want to. Just to prevent yelling in the future Not sure if I want to install an old package with raised version number. Is there no way to get your hands on source of newer package?