Meraki MR18 OpenWrt Firmware

CPU: Qualcomm Atheros QCA9557
RAM: 128 MB
Flash: 128NAND MB

The Meraki MR18 is supported by OpenWrt on the ath79/nand 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	Qualcomm Atheros QCA9557
CPU cores	1
CPU frequency	720 MHz
RAM	128 MB
Flash	128NAND MB
1 Gbit Ethernet ports	1
WLAN hardware	Qualcomm Atheros QCA9557, Atheros AR9582 x2

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	ath79/nand	meraki_mr18

Downloads

Download images

OpenWrt 25.12.5 · ath79/nand

Image	Type	sha256
openwrt-25.12.5-ath79-nand-meraki_mr18-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt.	sysupgrade	aac42b1a5462…
openwrt-25.12.5-ath79-nand-meraki_mr18-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery.	kernel	405ba710b9bd…

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

Packages & install

Default packages & installation

Default packages

Every image for the Meraki MR18 ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.

Device packages (3)

kmod-leds-uleds kmod-spi-gpio nu801

Target default packages (29)

apk-mbedtls base-files ca-bundle dnsmasq dropbear firewall4 fstools kmod-ath9k kmod-gpio-button-hotplug kmod-nft-offload libc libgcc libustream-mbedtls logd mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail swconfig 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-ath79-nand-meraki_mr18-squashfs-sysupgrade.bin
aac42b1a54626e488dc795fc51f9af3ea7e8cbc8649376c72a3cff0380ca9406  openwrt-25.12.5-ath79-nand-meraki_mr18-squashfs-sysupgrade.bin

Build custom firmware

Need more than the default image for the Meraki MR18? 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 Meraki devices

More devices on ath79/nand

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.