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.
