I mean reflashed with dump. That should be obvious.
Yes, of course OpenWrt built from source.
You should understand, *.bin is not a predefined file format, it just common extension for binary files.
Anyway, at the moment, the only way to reflash Mi Repeater with custom firmware is SPI flash programmer, like ch341a. So of course I need to modify dump.
I'm 100% sure tools for unpacking exist. U-boot should be easy to extract, root fs probably uses somthing like JFFS.
The only similarity is we probably got wrong forum.
I found this thread from google, and thought that some of openwrt folks have some experience with firmware reverse engineering.