Tenda AC18 back to OFW

To use the back-to-ofw file, go to Administration -> Configuration and clear nvram thoroughly.
Once the router is back up, go to Administration -> Upgrade, choose the file TendaAC18-back-to-ofw.trx then upgrade.
Be sure to give it at least 3 minutes.

If you set a static IP, release it after 3 minutes and you should receive Tenda IP 192.168.0.1, but before you login you'll want to reset Tenda first.
So press and hold the reset button till the led starts to blink and you may release the button.

Let the router reset back to OFW maybe 2 minutes or so and that's it.