Hi, apologies for this non Openwrt post but this is the only place I've found any useful info on the Realtek bootloader:
https://openwrt.org/docs/techref/bootloader/realtek#:~:text=The%20RealTek%20bootloader%20was%20written,and%20optionally%20HTTP%20and%20DHCP%20.
I have an old Edimax BR6258N that is stuck in a bootloop after what I think was a corrupt config change. I've found the serial console & can upload a new official Edimax image via tftp but this does not seem to help as I think it's the config file rather than the boot image that needs to be changed. Does anyone know if / how the busybox boot process can be interrupted or is there another image I can try to load that will work?
Thanks.