Yes, you can.
Just enter router’s built in recovery WebUI, use Reset NVRAM defaults and after that just load your preferred FW.
Do that by holding down the reset button while powering up the router, wait until the power led is blinking slowly, then release the reset button.
Set your NIC card to static IP 192.168.1.100, Subnet 255.255.255.0, Default gateway 192.168.1.1
Access the router’s built in recovery site by issuing 192.168.1.1 in browser address bar.