Original Xiaomi Mi Router 3 WiFi Wireless AC Router 128MB of RAM, Ethernet,CPU MT7620A 580MHz
How to install OpenWrt on Xiaomi Mi Router 3
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.
Building and Installing Padavan for the Mi Router 3 (Get it working with Unifi & Maxis) - YouTube