Long story short, I tried to downgrade back to stock firmware from OpenWRT due to driver issues. So, I (stupidly) overwrote both the backup and main bootloader with the image, only to reboot to a broken webUI (but a working network). Upon visiting, it displays this.
I have tried flashing the correct firmware/openWRT firmware via TFTP many times, but it always fails. I have a static IP and have followed everything on the wiki. The 30/30/30 reset doesn't work, and the backup bootloader doesn't work. Is there anything else I can do?