Xiaomi Mi Router 4A Gigabit Edition (R4AG/R4A Gigabit) -- fully supported and flashable with OpenWRTInvasion - #302 by Double-G - For Developers - OpenWrt Forum
OpenWrt Wiki] Xiaomi Mi Router 4A Gigabit Edition
OpenWRT on Xiaomi Router | OpenWRT on Xiaomi's Mi Router 3G