Mercusys MR85X

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abgn+ac+ax (AX3000)
AX3000 Dual-Band Wi-Fi 6 Router
Homepage Product page
WikiDevi.wi-cat.ru Mercusys MR85X
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev Mercusys MR85X v1
FCC ID none specified
Type wireless router
CPU1 checkY MediaTek MT7981BA
CPU1 Type ARM Cortex-A53
CPU1 Speed 1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip GigaDevice GD5F1GQ5UEYIGY
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 />
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 MT7981BA
ETH chip2 Airoha EN8811H
Switch Realtek RTL8367S
Ethernet Port Count 1-2.5GbE-WAN
3-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab/3bz

802dot11 OUI: none specified

Stock bootloader u-boot
Expansion IF types none specified
Power 12 VDC, 1.5 A
Connector type barrel
Serial Port (UART) yes

Flags:
Wi-Fi 6, OFDMA, MU-MIMO, 1024-QAM, WPA3, EasyMesh, BSS Color, TWT

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Retail
Country of manuf China
Physical
Dimensions 209 × 171.7 × 42.4 mm
Radio 1
Chip1 MediaTek MT7981BA
Chip2 MediaTek MT7976CN
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 MT7981BA
Chip2 MediaTek MT7976CN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x3:2
Wireless Standard IEEE 802.11a/n/ac/ax
AX-QAM up to 2402 Mbps
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 Airoha (EcoNet) chipsets with specifications, see Airoha.
For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

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

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 1024QAM),
• 2402 Mbps - 2SS 5GHz 802.11ax (160MHz chan., 1024QAM) = AX3000 class

Links of Interest

Flashing

Flashing OpenWrt

Target: mediatek
Subtarget: filogic
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: 25.12.0
Current supported version: 25.12.5
LAN Hardware: Realtek rtl8367s
LAN Comment: Airoha EN8811H phy
WLAN Hardware: MediaTek MT7981B
Installation method(s):
GUI generic
Recovery method(s):
see devicepage
git • >>
mediatek: add support for Mercusys MR85X
This commit adds support for Mercusys MR85X router.

Device specification:
 - SoC: Mediatek MT7981b, Cortex-A53, 64-bit
 - RAM: 512MB
 - Flash: SPI NAND GigaDevice GD5F1GQ5UEYIGY (128 MB)
 - Ethernet: Realtek rtl8367s + 2.5Gbe Airoha en8811h
 - Ethernet: 1x2.5Gbe (WAN 2.5Gbps), 3xGbe (LAN 1Gbps, port0, port1, port2)
 - Wireless: 2.4GHz (802.11 b/g/n/ax)
 - Wireless: 5GHz (802.11 a/n/ac/ax)
 - LEDs: 1 amber and 1 green status LEDs, 4 green gpio-controlled LEDs
   on ethernet ports
 - Buttons: 2 (reset,wps)
 - Bootloader: Main U-Boot - U-Boot 2022.07-rc3. Additionally, both UBI
   slots contain "seconduboot" (also U-Boot 2022.07-rc3)

Installation (UART):
 - Place OpenWrt initramfs-kernel image on tftp server with IP 192.168.1.2
 - Attach UART, switch on the router and interrupt the boot process by
   pressing 'Ctrl-C'.
 - Set the uboot environment for startup.
   setenv tp_boot_idx 0; saveenv
   If the bootarg is set to boot from ubi1, also change it to ubi0.
 - Load and run OpenWrt initramfs image.
   setenv serverip 192.168.1.2; setenv ipaddr 192.168.1.1; tftpboot initramfs-kernel.bin; bootm
 - Browse IP 192.168.1.1, upload the 'sysupgrade' image and do upgrade.

Recovery:
 - Press Reset button and power on the router.
 - Navigate to U-Boot recovery web server (http://192.168.1.1/) and
   upload the OEM firmware.

Stock layout:
0x000000000000-0x000000200000 : "boot"
0x000000200000-0x000000300000 : "u-boot-env"
0x000000300000-0x000003500000 : "ubi0"
0x000003500000-0x000006700000 : "ubi1"
0x000006700000-0x000006f00000 : "userconfig"
0x000006f00000-0x000007300000 : "tp_data"

ubi0/ubi1 format:
U-Boot at boot checks that all volumes are in place:
+-------------------------------+
| Volume Name: uboot   Vol ID: 0|
| Volume Name: kernel  Vol ID: 1|
| Volume Name: rootfs  Vol ID: 2|
+-------------------------------+

MAC addresses:
+---------+-------------------+-----------+
|         | MAC               | Algorithm |
+---------+-------------------+-----------+
| label   | 00:FF:xx:xx:xx:EE | label     |
| WAN     | 00:FF:xx:xx:xx:EF | label+1   |
| LAN     | 00:FF:xx:xx:xx:EE | label     |
| WLAN 2g | 00:FF:xx:xx:xx:ED | label-1   |
| WLAN 5g | 00:FF:xx:xx:xx:EC | label-2   |
+---------+-------------------+-----------+
label MAC address was found in UBI partition "tp_data", file "default-mac".
OEM wireless eeprom is also there, file "MT7981_EEPROM.bin".

See also

Mercusys • Mercury • Devices
Mercury MW305R v1.x
Mercury MW305R v3.x
Mercury MW300R v3.x