- Download the ASUS Firmware Restoration Tool but don’t open it yet (Recommended version)
- Unplug your computer from the router
- Put the router into Rescue Mode by turning the power off, using a pin to press and hold the reset button, then turning the router back on while keeping the reset button pressed for ~5 secs until the power LED starts flashing slowly (which indicates the router has entered Rescue Mode)
- Important (if you don’t do this next step the Asus Firmware Restoration Tool will wrongly assume that the router is not in Rescue Mode and will refuse to flash it): go to the Windows Control Panel and temporarily disable ALL other network adapters except the one you will use to connect your computer to the router
- For the single adapter you left enabled, temporarily give it the static IP 192.168.1.10 and the subnet mask 255.255.255.0
- Connect a LAN cable between your computer (make sure to use the Ethernet port of the adapter you’ve just set up) and port 1 of the router (not the router’s WAN port)
- Rename openwrt-XX.XX.X-ramips-mt7620-rt-ac51u-squashfs-sysupgrade.bin to factory.trx
- Open the Asus Firmware Restoration Tool, locate factory.trx and click upload (if Windows shows a compatibility prompt, confirm that the tool worked fine)
- Flashing and reboot is finished when the power LED stops blinking and stays on
- That’s it! (Don’t forget to re-enable any network adapters you disabled earlier)
My name is Rayhan and I’m an IT professional with over 10 years of experience in the field. I’m passionate about all things tech, and I love helping people solve their IT problems. In my free time, I enjoy tinkering with new gadgets and software, and I’m always on the lookout for the latest tech trends. I believe that technology has the power to make our lives easier and more enjoyable, and I’m excited to be a part of this ever-evolving field. Thank you for taking the time to visit my page.