Download the latest AsusWRT Merlin firmware build for your specific FlashRouter model at the Asus Merlin download website. Contact support@flashrouters.com if you are uncertain about your router model or your router model is not available. Click your router model and then select the Release folder.
Make sure you are following the directions below to load the firmware file into the router settings and not trying to open the firmware file on its own.
Access the FlashRouter via wired connection. It is possible to upgrade firmware via WiFi, but this is not recommended unless you are unable to wire directly to the router.
Navigate to Administration > Firmware Upgrade
