Xiaomi Mi Router 4 OpenWrt Firmware
The Xiaomi Mi Router 4 is supported by OpenWrt on the ramips/mt7621 target. 4 firmware images are available from the official OpenWrt 25.12.5 stable release — download one below, or build a custom OpenWrt image for this device with your own package selection.
Build matrix
Supported firmware versions
| Distribution | Version | Target | Profile |
|---|---|---|---|
| OpenWrt | 25.12.5 | ramips/mt7621 | xiaomi_mi-router-4 |
Downloads
Download images
OpenWrt 25.12.5 · ramips/mt7621
| Image | Type | sha256 |
|---|---|---|
| openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery. | kernel | 41e52c4cbeb7… |
| openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-squashfs-rootfs0.bin Rootfs archive for Docker / LXC containers. | rootfs0 | ee17bd5ba84a… |
| openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 52261043a070… |
| openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-squashfs-kernel1.bin | kernel1 | a38aa0f3a024… |
Downloads are served by the official OpenWrt mirrors — unchanged upstream stable builds.
Packages & install
Default packages & installation
Default packages
Every image for the Xiaomi Mi Router 4 ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.
Device packages (2)
kmod-mt7603 kmod-mt76x2
Target default packages (29)
apk-mbedtls base-files ca-bundle dnsmasq dropbear firewall4 fstools kmod-crypto-hw-eip93 kmod-gpio-button-hotplug kmod-leds-gpio kmod-nft-offload libc libgcc libustream-mbedtls logd mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail uboot-envtools uci uclient-fetch urandom-seed urngd wpad-basic-mbedtls
Installation notes
- Already running OpenWrt or ImmortalWrt: flash the sysupgrade image from LuCI (System → Backup / Flash Firmware) or with the sysupgrade command.
- The kernel / initramfs image boots from RAM without writing to flash — useful for a first install or for recovering from a failed flash.
- Verify your download against the published checksum before flashing:
$ sha256sum openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-initramfs-kernel.bin 41e52c4cbeb75f18f9bac84b52769dbcbb352404a18a7e2ce0aaec9f7cfb0fdc openwrt-25.12.5-ramips-mt7621-xiaomi_mi-router-4-initramfs-kernel.bin
Build custom firmware
Need more than the default image for the Xiaomi Mi Router 4? Pick your packages — LuCI apps, themes, VPN clients — set the basics, and get a ready-to-flash OpenWrt image assembled from official packages in minutes.
Customize firmware for this deviceRelated
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- Xiaomi Mi Router 3 Pro OpenWrt firmware
- Xiaomi Mi Router 3G OpenWrt firmware
- Xiaomi Mi Router 3G v2 OpenWrt firmware
- Xiaomi Mi Router 4A 100M Edition OpenWrt firmware
More devices on ramips/mt7621
Upstream
Upstream & source
Images are assembled from packages compiled and published by the upstream OpenWrt and ImmortalWrt projects. The complete corresponding source code is available from those projects under the GPL.