If you have obtained an official firmware file (like a *.bin file) directly from your ISP's technical support, you can use this method.

Firmware is the low-level software that runs your router. It controls everything from how it connects to your ISP to how it manages the flow of data. Updating to a new firmware version is not just about getting new features; it is a matter of security and performance.

Select and save the file to your computer. This ensures you can restore your internet settings if the upgrade resets the device. Step 4: Flashing the New Firmware

The most common way is through the router's built-in web page. This method is universal and works even if your internet connection is down, as long as your computer is connected to the router (via Wi-Fi or Ethernet cable).