the firmware file (usually a .bin or .zip file) to your computer. If it is a .zip file, unzip it before proceeding. Step 2: Access the Router Interface How to upgrade the firmware on your D-Link router
DSL-224 Firmware Directory (contains various versions like 3.0.8 and 3.0.10). General Support: D-Link Download Center . Step-by-Step Update Guide Important Pre-checks: dlink dsl224 firmware update download link