The SX80 codec can be factory reset in several ways: By issuing the xAPI command: xCommand SystemUnit FactoryReset Confirm: Yes By using the Touch panel: Settings - Administrator Settings - Reset
The Procedure i have explained in this video is doing a factory reset using a physical button.
By using the following power button sequence: 1. Power down the unit by holding the power button in for 5 seconds. 2. From a cold start, press and hold the power button in for 10 seconds until the power LED starts to blink. 3. Press the power button twice within 2 seconds and the codec will reboot with default settings. 4. The unit is now reset to factory defaults.
Here is the Serial output, at the time of factory reset.
Hardware-triggered factory reset being performed Shutting down Unmounted /oldroot/run Unmounted /oldroot/proc Unmounted /oldroot/dev/shm Unmounted /oldroot/dev/pts Unmounted /oldroot/sys/fs/cgroup/systemd Unmounted /oldroot/sys/fs/cgroup/cpuset Unmounted /oldroot/sys/fs/cgroup/debug Unmounted /oldroot/sys/fs/cgroup/cpu,cpuacct Unmounted /oldroot/sys/fs/cgroup/memory Unmounted /oldroot/sys/fs/cgroup/devices Unmounted /oldroot/sys/fs/cgroup/net_cls Unmounted /oldroot/sys/fs/cgroup/blkio Unmounted /oldroot/dev Unmounted /oldroot/sys/fs/cgroup Unmounted /oldroot/sys Unmounted /oldroot losetup: /dev/loop0: No such device or address Unmounting flash disk Restarting system.