Xiaomi Mi Router 4A 100M Edition OpenWrt Firmware

Name: Xiaomi Mi Router 4A 100M Edition
Brand: Xiaomi

The Xiaomi Mi Router 4A 100M Edition is supported by OpenWrt on the ramips/mt76x8 target. 2 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/mt76x8	xiaomi_mi-router-4a-100m

Downloads

Download images

OpenWrt 25.12.5 · ramips/mt76x8

Image	Type	sha256
openwrt-25.12.5-ramips-mt76x8-xiaomi_mi-router-4a-100m-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt.	sysupgrade	d39727ba9ec0…
openwrt-25.12.5-ramips-mt76x8-xiaomi_mi-router-4a-100m-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery.	kernel	8b00e39234ba…

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 4A 100M Edition ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.

Device packages (1)

kmod-mt76x2

Target default packages (28)

apk-mbedtls base-files ca-bundle dnsmasq dropbear firewall4 fstools kmod-gpio-button-hotplug kmod-leds-gpio kmod-mt7603 kmod-nft-offload libc libgcc libustream-mbedtls logd mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe swconfig 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-mt76x8-xiaomi_mi-router-4a-100m-squashfs-sysupgrade.bin
d39727ba9ec0b21d39f6fce5e2951c1f1207c777107ebee360317c7a2b26e743  openwrt-25.12.5-ramips-mt76x8-xiaomi_mi-router-4a-100m-squashfs-sysupgrade.bin

Build custom firmware

Need more than the default image for the Xiaomi Mi Router 4A 100M Edition? 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 device

More Xiaomi devices

More devices on ramips/mt76x8

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.