Hold the button for 30 seconds to perform a full factory reset. In this case all configuration profiles will be cleared.
Please only use a ballpoint pen to press the button, don't use a sharp item like a needle!
Factory reset using the web interface
The openSPOT2 can be reset to factory defaults if you click on the Reset all config profiles button at the bottom of the Settings page, or you hold the button for at least 30 seconds (until the LED turns off). These methods will reset all configuration profiles to the default settings.
If you only want to reset the active configuration profile to defaults, you can use the Reset config profile button at the bottom of the Settings page, or you can enter the rbc serial console command.