Wodesys WD-R1802U

abgn+ac+ax (AX1800)
AX1800 Repeater
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Wodesys WD-R1802U
FCC ID	none specified
Type	access point
CPU1 Y	MediaTek MT7621A
CPU1 Type	MIPS 1004Kc
CPU1 Speed	880 MHz ( 2 cores ) 16-bit
Flash1 Chip	Winbond W25Q128JVPQ
Flash1 Size	16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> (SPI NOR)
RAM1 Size	256 MiB 268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (DDR3)
RAM1 Chip	Samsung K4B2G1646F-BCNB
ETH chip1	MediaTek MT7621A
Ethernet Port Count	1-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: 1C:BF:CE (1 E, 1 W) Ethernet OUI: 1C:BF:CE (1 E, 1 W)
Stock bootloader	U-Boot
Expansion IF types	none specified
Power	110-220 VAC ~ ? Hz, ? A
Connector type	AC (direct)
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Flags: Wi-Fi 6
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7905DAN
Chip2	MediaTek MT7975DN
Wireless interface OUI	1C:BF:CE
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 MT7905DAN
Chip2	MediaTek MT7975DN
Wireless interface OUI	1C:BF:CE
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.

• 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)

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 24.10.0
Current supported version: 25.12.2

WLAN Hardware: MediaTek MT7905DAN, MediaTek MT7975DN
WLAN Comment: 2.4GHz: 2x2:2 MIMO, 5GHz: 2x2:2 MIMO
Installation method(s):
see git-commit
Recovery method(s):
see git-commit

git • >>

ramips: mt7621: add support for Wodesys WD-R1802U This commit adds support for a dual-band AX1800 wall plug manufactured by Shenzhen Century Xinyang Tech Co., Ltd. CPU: Mediatek MT7621A (2 cores, 4 threads) RAM: 256i MiB DDR3 (Samsung K4B2G1646F-BCNB) ROM: 16 MiB SPI NOR (Winbond W25Q128JVPQ) Wired: one gigabit RJ45 port (with green/yellow non-GPIO LEDs) WiFi: Mediatek MT7905DAN + MT7975DN (DBDC 2x 2T2R) Ant.: four 2 dBi external antennas (two 2.4GHz, two 5 GHz) GPIO: tri-color status LED (GPIO 13, 14, 16); reset button (GPIO 18) Power: 12V 2-pin JST-XH on main PCB 110/220V AC to 12V1A DC on auxiliary PCB UART: 115200 8n1, SMD pads available on the PCB as J4 pinout is [3v3] (Rx) (Tx) (Gnd) MAC: 1C:BF:CE:xx:xx:xx (2.4 GHz, label) 1C:BF:CE:xx:xx:xx + 1 (ethernet [1]) 1C:BF:CE:xx:xx:xx + 2 (5 GHz) Original firmware is LEDE Reboot 17.01-SNAPSHOT (kernel 4.4.198) with a few custom packages and a non-LuCI web interface. Telnet and SSH are enabled, requiring an unknown root password [2]. Root password is also needed to access the router via UART console, but passwordless telnet can be enabled via a trivial web exploit [3] and then the root password can be removed by editing `/etc/shadow`. Installation: First upload `sysupgrade` binary via web interface at `http://192.168.188.1/settings.shtml` and wait until getting back to the home screen (select network to extend). The installation fails since the original firmware uses `swconfig` and recent versions of OpenWrt use DSA. However, the sysupgrade file is uploaded correctly and stored at `/tmp/upgrade.bin`, so it can be written to flash via the web exploit [4] (both `mtd -r write` and `sysupgrade -Fn` work fine). Passwordless telnet/ssh is not needed for installation. Alternatively, use u-boot menu to load image via TFTP. Notes: - Device model in LEDE is "MediaTek MT7621 RFB (802.11ax,SNOR)". - It is sold under several names, among them are Wodesys WD-R1802U, Fenvi F-AX1802U, and EDUP EP-2971; the Wodesys brand was selected since it is referenced in `/etc/banner` and `/etc/hosts`, and the PCB is marked "WD518A V1.0". - Instead of a standard ethernet transformer, the PCB has a few tiny SMD coils. [1] Original firmware sets ethernet MAC to 1C:BF:CE:E7:62:1D based on offset `0x3fff4` in the Factory partition; since this is the same MAC for all units, whereas WiFi MACs stored at offsets 0x6 and 0xc are unique, it was decided to use <label MAC + 1> for ethernet. [2] root:$1$7rmMiPJj$91iv9LWhfkZE/t7aCBdo.0:18388:0:99999:7::: [3] curl -X POST http://192.168.188.1/cgi-bin/adm.cgi \ -d page=Lang -d langType="en;killall telnetd;telnetd -l /bin/sh" [4] curl -X POST http://192.168.188.1/cgi-bin/adm.cgi \ -d page=Lang -d langType="en;mtd -r write /tmp/upgrade.bin firmware"