OpenWrt for Xiaomi Mi Router 4C - Community Builds, Projects & Packages - OpenWrt Forum
OpenWrt Wiki] Xiaomi Mi Router 3 Pro (R3P)
GitHub - Baumgartl/openwrt-xiaomi-mir3: OpenWrt with support for the Xiaomi Mi WiFi Router 3 a/k/a MIR3. Based on current stable release v18.06.2 with Linux Kernel 4.14.95.