Notes on the update FRITZ!OS 7.20/7.21 ===================================== If you are using FRITZ!OS version 06.32 or older 02/2016, international version: 02/2018), for technical reasons you cannot update to the latest FRITZ!OS 07.20 in a single step. First you have to update to FRITZ!OS 7.x. Open the user interface ("fritz.box") and click on "System / Update / FRITZ!OS Version". Click there on the "Find New FRITZ!OS" button. When the update is found, the "Start Update Now" button appears. Click on "Start Update Now" to update to FRITZ!OS 7.x. The "Info" LED on the FRITZ!Box starts flashing and the new version of FRITZ!OS is transferred to the FRITZ!Box. The update is complete when the "Info" LED stops flashing. With this version of FRITZ!OS you can now perform the update to the latest version of FRITZ!OS. your AVM-Team