I tried to update my netgear firmware and my WiFi completely stopped working.

I tried to update my firmware and my WiFi router completely stopped working. It’s not connected to a computer or anything it’s connected to the wall and I have no control over the modem. I’ve tried pressing the reset button for 10 seconds and that didn’t work. I unplugged the router and the internet cable and that didn’t work. I’m not sure what I should do at this point.