You must use a wired Ethernet connection. Attempting an update over Wi-Fi can result in a permanent device failure if the wireless signal drops during the flash.
Overview
Navigate to the or Tools tab in the router interface. Select Firmware Update . dlink dsl124 firmware update download best link
: Download the correct file for your hardware revision. If it is a .zip or .rar file, you must unzip it first to get the .bin or .img firmware file. You must use a wired Ethernet connection