great router for the price, has 5g capability. was a bit of a task to downgrade then ssh in and flash worth the fun though.
the crappy part is libremesh did not do good job with the recovery mode i cannot find the ip address around for it. so if you get in a pinch you have to reflash to stock firmware. its very aweful to try and sit with it too, feels like its on broadcast mode all the time.
https://www.libremesh.org/docs/hardware/xiaomi-miwifir3.html followed these instructions and it worked great. http://10.13.0.1 afterwards
https://www.libremesh.org/howitworks.html good read afterwards
recovering the router from u-boot, i soldered a uart onto it and got the message to press reset after flashing kernel from recovery folder on mega.nz.
https://mega.nz/#F!WY0FiTIS!Cl_Dzm4yhzrQZFazYG3i8Q
Download firmware and store as miwifi.bin
on an USB flash drive (must be FAT or FAT32)
then press reset when it says to in the serial console.
https://openwrt.org/toh/xiaomi/mir3#to_get_sshdropbear_access
* http://192.168.31.1/cgi-bin/luci/;stok=/web/home#router
* http://192.168.31.1/cgi-bin/luci/;stok=/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3Bnvram%20set%20ssh%5Fen%3D1%3B%20nvram%20commit
* http://192.168.31.1/cgi-bin/luci/;stok=/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3Bsed%20%2Di%20%22%3Ax%3AN%3As%2Fif%20%5C%5B%2E%2A%5C%3B%20then%5Cn%2E%2Areturn%200%5Cn%2E%2Afi%2F%23tb%2F%3Bb%20x%22%20%2Fetc%2Finit.d%2Fdropbear
* http://192.168.31.1/cgi-bin/luci/;stok=/api/xqnetwork/set_wifi_ap?ssid=Xiaomi&encryption=NONE&enctype=NONE&channel=1%3B%2Fetc%2Finit.d%2Fdropbear%20start
* http://192.168.31.1/cgi-bin/luci/;stok=/api/xqsystem/set_name_password?oldPwd=&newPwd=