Xiaomi MiWiFi 4A v2

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multiple revisions of this device, use caution
abgn+ac (AC1200)
wireless router
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev Xiaomi MiWiFi 4A v2
FCC ID none specified
Type wireless router
CPU1 checkY MediaTek MT7621AT
CPU1 Type MIPS 1004Kc
CPU1 Speed 880 MHz ( 2 cores ) 16-bit
Flash1 Chip GigaDevice GD25Q127CSIG
Flash1 Size 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
RAM1 Size 128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Chip ESMT M15T1G1664A-AZC1
ETH chip1 MediaTek MT7621AT
Switch MediaTek MT7621AT
Ethernet Port Count 1-1GbE-WAN
2-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Stock FW OS Linux 3.10.14
Expansion IF types none specified
Power 12 VDC, 1 A
Connector type barrel
Serial Port (UART) yes
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7603E
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 MediaTek MT7663
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz
 CPU1 brandRadio1 chip1 brandRadio2 chip1 brand
Xiaomi MiWiFi 4 Pro (R1350)Qualcomm AtherosQualcomm AtherosQualcomm Atheros
Xiaomi MiWiFi 4A (100M)MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4A (R4AG)MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4A v2MediaTekMediaTekMediaTek
Xiaomi MiWiFi 4AC International (R4AC) 100MMediaTekMediaTekMediaTek

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.

For a list of all currently documented Xiaomi devices with specifications, see Xiaomi.

867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.),
300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = AC1200 class

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
OpenWrt Target: ramips
OpenWrt Subtarget: mt7621
OpenWrt Package architecture: mipsel_24kc
Support started version: 23.05.0
Current supported version: 24.10.2

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