ASUS 4G-AX56

abgn+ac+ax (AX1800)
Dual-Band Wi-Fi 6 AX1800 LTE Router
Homepage	Product page
Wikipedia	Asus routers
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	ASUS 4G-AX56 A1
FCC ID	none specified
Type	wireless router, LTE modem
CPU1 Y	MediaTek MT7621AT
CPU1 Type	MIPS 1004Kc
CPU1 Speed	880 MHz ( 2 cores ) 16-bit
Flash1 Chip	Brand? Model?
Flash1 Size	128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (NAND)
RAM1 Size	512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br />
RAM1 Chip	Brand? Model?
ETH chip1	MediaTek MT7621AT
Switch	MediaTek MT7530
Ethernet Port Count	1-1GbE-WAN 4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	SIM
SIM Card slot	1
Power	12 VDC, ? A
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
JTAG Port	no
Flags: LTE, Wi-Fi 6
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7905
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n/ax
802.11ax	up to 574 Mbps
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 MT7975
Wireless interface OUI	none specified
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/n/ac/ax
802.11ax	up to 1201 Mbps
802.11ac	up to 867 Mbps
802.11n	up to 300 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz

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

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

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 256-QAM),

• 1201 Mbps - 2SS 5GHz 802.11ax (80MHz chan., 1024-QAM) = AX1800 class

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
On the OpenWrt Forum

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: unknown
Current supported version: snapshot

Unsupported Functions:
Cellular LEDs
LAN Hardware: MediaTek MT7530
LAN Comment: Fibocom FG621-EA LTE Cat 6 Modem, 1 x Nano SIM tray slot, mid non-detachable antenna and one internal cellular antenna
WLAN Hardware: MediaTek MT7905, MediaTek MT7975
WLAN Comment: MIMO 2x2:2 on both bands, 2 non-detachable antennas (outer two)
Installation method(s):
mtd-write using ssh
Recovery method(s):
see git-commit
Recovery Comment:
Use OEM U-boot TFTP method

git • >>

ramips: add support for ASUS 4G-AX56 Specifications: - Device: ASUS 4g-AX56 - SoC: MT7621AT - Flash: 128MB - RAM: 512MB - Switch: 1 WAN, 4 LAN (10/100/1000 Mbps) - WiFi: MT7905 2x2 2.4G + MT7975 2x2 5G - LTE : Fibocom FG621-EA - LEDs: 1x POWER (white, configurable) 1x 2.4G (white, not configurable) 1x 5G (white, not configurable) 1x WAN (white, not configurable) 1x 3G/4G (white, not configurable) 3x signal (white, not configurable) Flash by U-Boot TFTP method: - Configure your PC with IP 192.168.0.2 - Set up TFTP server and put the factory.bin image on your PC - Connect serial port(rate:115200) and turn on AP, then interrupt "U-Boot Boot Menu" by hitting any key Select "2. Upgrade firmware" Press enter when show "Run firmware after upgrading? (Y/n):" Select 0 for TFTP method Input U-Boot's IP address: 192.168.0.1 Input TFTP server's IP address: 192.168.0.2 Input IP netmask: 255.255.255.0 Input file name: openwrt-ramips-mt7621-asus_4g-ax56-squashfs-factory.bin - Restart AP aftre see the log "Firmware upgrade completed!" Notice: - LTE module is disable after flash openwrt image so you must active LTE by following two AT command echo -e "AT+GTAUTOCONNECT=1\r\n" > /dev/ttyUSB0 echo -e "AT+GTRNDIS=1,1\r\n" > /dev/ttyUSB0 - After finish AT command once, you don't need to input command later even if reboot/restore default