OpenWrt bricks Xiaomi Mi Router 4A (MIR4AC) 100M international version

I have come across what seems to be version 2 of the 4a.
Since so many were active on this thread, i wonder if someone would help me to to find the difference between v2 and this (@diepeterpan @WereCatf eg?)

I have 5 devices and have previously compiled, but only an existing device.
I know how to get in there with the exploit and run commands, just not which ones, or what to do then.