. A power outage now would be a disaster, potentially "bricking" the router forever. Entering the Control Room F6 Wireless N300 Easy Setup Router - Tenda Global

Downloaded firmware usually arrives in a .zip format and must be extracted to a .bin file. Step-by-Step Tenda F6 Firmware Update Guide

If the update process was interrupted, the router may become unresponsive. Unplug the power adapter.