How do I locate my device's serial #? Jake August 09, 2019 18:20 Updated Follow Knocki's serial number can be located under the batteries in the 3rd slot from the power switch. Related articles Can I connect Knocki to my network without scanning or entering the device's serial #? How do I perform a hard reset? Knocki won't connect during WiFi setup Knocki is slow to respond to gestures Philips Hue Comments 0 comments Article is closed for comments.