Ubiquiti EdgeRouter 4 OpenWrt Firmware

CPU: Cavium CN7130
RAM: 1024 MB
Flash: 8, eMMC MB

The Ubiquiti EdgeRouter 4 is supported by OpenWrt on the octeon/generic 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.

Specs

Specifications

CPU	Cavium CN7130
CPU cores	4
CPU frequency	1000 MHz
RAM	1024 MB
Flash	8, eMMC MB
1 Gbit Ethernet ports	3
Switch	Qualcomm Atheros QCA8337N

Hardware data from the OpenWrt Table of Hardware; verify against your unit before flashing.

Build matrix

Supported firmware versions

Distribution	Version	Target	Profile
OpenWrt	25.12.5	octeon/generic	ubnt_edgerouter-4

Downloads

Download images

OpenWrt 25.12.5 · octeon/generic

Image	Type	sha256
openwrt-25.12.5-octeon-generic-ubnt_edgerouter-4-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery.	kernel	bc85494ab796…
openwrt-25.12.5-octeon-generic-ubnt_edgerouter-4-squashfs-sysupgrade.tar Not sure? Pick this if upgrading from OpenWrt.	sysupgrade	c04a50f88de9…

Downloads are served by the official OpenWrt mirrors — unchanged upstream stable builds.

Packages & install

Default packages & installation

Default packages

Every image for the Ubiquiti EdgeRouter 4 ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.

Device packages (7)

kmod-gpio-button-hotplug kmod-leds-gpio kmod-of-mdio kmod-sfp kmod-usb3 kmod-usb-dwc3 kmod-usb-storage-uas

Target default packages (27)

apk-mbedtls base-files ca-bundle dnsmasq dropbear e2fsprogs firewall4 fstools kmod-nft-offload kmod-usb-dwc3-octeon libc libgcc libustream-mbedtls logd mkf2fs mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail uci uclient-fetch urandom-seed urngd

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-octeon-generic-ubnt_edgerouter-4-initramfs-kernel.bin
bc85494ab7963b1018cb52060873cdd301f4b7c9fe0dd4675048a4ca0974e6d9  openwrt-25.12.5-octeon-generic-ubnt_edgerouter-4-initramfs-kernel.bin

Build custom firmware

Need more than the default image for the Ubiquiti EdgeRouter 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 device

More Ubiquiti devices

More devices on octeon/generic

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.