Phone no longer working - "locker is broken and unlocking is not possible"

I’m experiencing the same issue (on a Pinephone Pro), which I’ve described in the announcement for the latest ARM stable update: [ARM Stable Update] 2022-09-28 - KDE Frameworks 5.98, Firefox 105, QT5, QT6, ButterManager 2.5.0 and Kernels - #4 by brennana

The update seemed to cause other issues with Phosh as well, even from a fresh install of Beta27 with updates applied afterwards. The device cannot see any of its networking devices (Modem, WiFi, BT) despite Phosh itself working.