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 #? Knocki is slow to respond to gestures Will using Knocki disturb Others? Knocki won't connect during WiFi setup Comments 0 comments Article is closed for comments.