F5 LTM command to factory reset the device

Try below instruction.

tmsh load /sys config default
Reset the system configuration to factory defaults? (y/n) : y
save /sys config partitions all
full_box_reboot
clsh full_box_reboot  >> VIPRION

The default factory reset will be

#tmsh load sys config default

But you'll lose everything, you have to build the box again. All your network setttings will be lost as well.