Deco flashing blue indicates the device is ready for setup or pairing. This signal typically means the Deco unit is waiting to connect to the network or another device via the app. Follow the instructions in the Deco app to complete the configuration and ensure proper operation.
https://tplnkdecomesh.com/deco....-blue-flashing-light

Favicon 
tplnkdecomesh.com

Deco Blue Flashing Light | Deco mesh blue light blinking

Troubleshoot your Deco mesh system with our guide on fixing the Deco blue flashing light. Learn why your Deco blue light is blinking and how to resolve it quickly.