are typically performed manually through the router's web-based management interface. Wireless N 300 ADSL2+ 4-Port Router DSL-124 - D-Link
Write this down. The region code (e.g., DE for Germany, RU for Russia, AU for Australia) is critical—you cannot install firmware meant for another region. dlink dsl124 firmware work
Firmware is the permanent software programmed into your router's read-only memory. It controls everything from data routing and security protocols to the strength of your Wi-Fi signal. DE for Germany