Buffalo BHR-4GRV OpenWrt Firmware
- CPU
- Atheros AR7242
- RAM
- 64 MB
- Flash
- 32 MB
The Buffalo BHR-4GRV is supported by OpenWrt/ImmortalWrt on the ath79/generic target. 8 firmware images are available from the official OpenWrt 25.12.5 and ImmortalWrt 25.12.1 stable releases — download one below, or build a custom OpenWrt image for this device with your own package selection.
Specs
Specifications
| CPU | Atheros AR7242 |
|---|---|
| CPU cores | 1 |
| CPU frequency | 400 MHz |
| RAM | 64 MB |
| Flash | 32 MB |
| 1 Gbit Ethernet ports | 5 |
| Switch | Atheros AR7242 |
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/generic | buffalo_bhr-4grv |
| ImmortalWrt | 25.12.1 | ath79/generic | buffalo_bhr-4grv |
Downloads
Download images
OpenWrt 25.12.5 · ath79/generic
| Image | Type | sha256 |
|---|---|---|
| openwrt-25.12.5-ath79-generic-buffalo_bhr-4grv-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 3e926cd79083… |
| openwrt-25.12.5-ath79-generic-buffalo_bhr-4grv-squashfs-tftp.bin | tftp | b76ebd769001… |
| openwrt-25.12.5-ath79-generic-buffalo_bhr-4grv-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery. | kernel | b836e564bed6… |
| openwrt-25.12.5-ath79-generic-buffalo_bhr-4grv-squashfs-factory.bin For first-time flash from stock firmware. | factory | c1bfe08e4fc5… |
ImmortalWrt 25.12.1 · ath79/generic
| Image | Type | sha256 |
|---|---|---|
| immortalwrt-25.12.1-ath79-generic-buffalo_bhr-4grv-squashfs-factory.bin For first-time flash from stock firmware. | factory | 0df2a607565f… |
| immortalwrt-25.12.1-ath79-generic-buffalo_bhr-4grv-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery. | kernel | 14167822dba5… |
| immortalwrt-25.12.1-ath79-generic-buffalo_bhr-4grv-squashfs-tftp.bin | tftp | 911daf98c017… |
| immortalwrt-25.12.1-ath79-generic-buffalo_bhr-4grv-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | c019ad2ec169… |
Downloads are served by the official OpenWrt/ImmortalWrt mirrors — unchanged upstream stable builds.
Packages & install
Default packages & installation
Default packages
Every image for the Buffalo BHR-4GRV ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.
OpenWrt 25.12.5 · ath79/generic
Device packages (2)
kmod-usb2 kmod-usb-ledtrig-usbport
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
ImmortalWrt 25.12.1 · ath79/generic
Device packages (2)
kmod-usb2 kmod-usb-ledtrig-usbport
Target default packages (33)
apk-openssl base-files block-mount ca-bundle default-settings-chn dnsmasq-full dropbear firewall4 fstools kmod-ath9k kmod-gpio-button-hotplug kmod-nf-nathelper kmod-nft-offload libc libgcc libustream-openssl logd luci mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail swconfig uboot-envtools uci uclient-fetch urandom-seed urngd wpad-openssl
Installation notes
- First install from stock firmware: flash the factoryimage through the vendor firmware's upgrade page or recovery mode.
- 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-generic-buffalo_bhr-4grv-squashfs-sysupgrade.bin 3e926cd79083ab40fc63b312bc0b7e4403800d7e04a2b82d986d936826eac9b0 openwrt-25.12.5-ath79-generic-buffalo_bhr-4grv-squashfs-sysupgrade.bin
Build custom firmware
Need more than the default image for the Buffalo BHR-4GRV? 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
Related devices
More Buffalo devices
- Buffalo BHR-4GRV2 OpenWrt firmware
- Buffalo LinkStation LS220DE OpenWrt firmware
- Buffalo LinkStation LS421DE OpenWrt firmware
- Buffalo WBMR-300HPD OpenWrt firmware
- Buffalo WBMR-HP-G300H A OpenWrt firmware
- Buffalo WBMR-HP-G300H B OpenWrt firmware
- Buffalo WCR-1166DS OpenWrt firmware
- Buffalo WHR-1166D OpenWrt firmware
More devices on ath79/generic
Upstream
Upstream & source
- downloads.openwrt.org — ath79/generic 25.12.5
- downloads.immortalwrt.org — ath79/generic 25.12.1
- OpenWrt Table of Hardware
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.