Getting Started Download the TP-Link Deco app for iOS or Android. The app will walk you through the setup. LED Status Each Deco has an LED light that changes color according to its status. See the explanation below. LED DECO STATUS Yellow pulse Deco is resetting. Yellow solid Deco is starting up. Blue solid Deco is setting up. Green solid/ White solid Deco is registered and all is well. Blue pulse Deco is ready for setup. Green pulse/ Deco is upgrading firmware.