The best experience of watching your favorite TV shows or movies or live sports is on Roku. You may enjoy the binge and the Roku is a compact device that doesn't affect any of your decors. Let us get to the topic what if you forget your activation code? Here I am to help you retrieve your activation code. Firstly make sure your Roku is connected with your TV and wireless or wired network. Turn on the device and choose your language, and once the internet flows, Your Roku device downloads software and displays the Roku link code on TV.