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Device: Xiaomi MiWiFi 3G v2

Last Updated: 06/07/2025 08:13:53 UTC

Specifications

Device Type WiFi Router
CPU model MediaTek MT7621A
CPU cores 2
CPU clock frequency (Mhz) 880
Flash Storage (MB) 16
Memory (MB) 128
1G Ethernet Ports 3
2.5G Ethernet Ports None
5G Ethernet Ports None
Modem None
VLAN Yes
WLAN Chipset MediaTek MT7603E, MediaTek MT7612E
WLAN 2.4GHZ b/g/n
WLAN 5GHZ a/n/ac
USB ports None
Bluetooth None
Bootloader U-Boot
Power Supply None
Switch MediaTek MT7621
Serial Yes
Serial Connection 115200 / 8N1
Button Count 1
LED Count 2
FCCID -
OEM Hompage -
OEM Firmware -
Wiki Devi -

OpenWRT

Supported Version Current 23.05.0
Supported Version Since 21.02.0
Forum Topic https://forum.openwrt.org/t/xiaomi-mi-router-4a-gigabit-edition-r4ag-r4a-gigabit-fully-supported-but-requires-overwriting-spi-flash-with-programmer/36685, https://forum.openwrt.org/t/xiaomi-wifi-router-3g-v2/42584
Firmware URL -
Firmware Upgrade URL https://downloads.openwrt.org/releases/23.05.0/targets/ramips/mt7621/openwrt-23.05.0-ramips-mt7621-xiaomi_mi-router-3g-v2-squashfs-sysupgrade.bin
Install Method U-Boot TFTP + serial recovery, see git-commit
Package Architecture mipsel_24kc
Target ramips
Subtarget mt7621