COMFAST CF-EW72 v2

multiple revisions of this device, use caution

abgn+ac (AC1200)
WiFi Repeater Router Bridge WiFi Access Point
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	COMFAST CF-EW72v2
FCC ID	none specified
Type	access point
CPU1 Y	MediaTek MT7621AT
CPU1 Type	MIPS 1004Kc
CPU1 Speed	880 MHz ( 2 cores ) 16-bit
Flash1 Chip	Brand? Model?
Flash1 Size	16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> (NOR)
RAM1 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 Chip	Brand? Model?
ETH chip1	MediaTek MT7621AT
Ethernet Port Count	2-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	none specified
PoE	802.3af, standard
Power	? VDC, ? A
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7603BE
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 MT7663BEN
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 brand Radio1 chip1 brand Radio2 chip1 brand COMFAST CF-EW72 Qualcomm Atheros Qualcomm Atheros Qualcomm Atheros COMFAST CF-EW72 v2 MediaTek MediaTek MediaTek

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

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

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.),

• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1200 class

Flashing

Flashing OpenWrt

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

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 23.05.2
Current supported version: 25.12.5

LAN Hardware: MediaTek MT7621AT
WLAN Hardware: MediaTek MT7603BE, MediaTek MT7663BEN
Installation method(s):
U-Boot web recovery, see git-commit
Recovery method(s):
U-Boot web recovery

git • >>

ramips: cf-ew72-v2: Add support for COMFAST CF-EW72 V2 Add support for COMFAST CF-EW72 V2 Hardware: - SoC: Mediatek MT7621 (MT7621DAT or MT7621AT) - Flash: 16 MiB NOR - RAM: 128 MiB - Ethernet: Built-in, 2 x 1GbE - Power: only 802.3af PD on any port, injector supplied in the box - PoE passthrough: No - Wifi 2.4GHz: Mediatek MT7603BE 802.11b/g/b - Wifi 5GHz: Mediatek MT7613BEN 802.11ac/n/a - LEDs: 8x (only 1 is both visible and controllable, see below) - Buttons: 1x (RESET) Installing OpenWrt: Flashing is done using Mediatek U-Boot System Recovery Mode - make wired connection with 2 cables like this: - - PC (LAN) <-> PoE Injector (LAN) - - PoE Injector (POE) <-> CF-EW72 V2 (LAN). Leave unconnected to CF-EW72 V2 yet. - configure 192.168.1.(2-254)/24 static ip address on your PC LAN - press and keep pressed RESET button on device - power the device by plugging PoE Injector (POE) <-> CF-EW72 V2 (LAN) cable - wait for about 10 seconds until wifi led stops blinking and release RESET button - navigate from your PC to http://192.168.1.1 and upload OpenWrt *-factory.bin firmware file - proceed until router starts blinking with wifi led again (flashing) and stops (rebooting to OpenWrt) MAC addresses as verified by OEM firmware: vendor OpenWrt address LAN lan\eth0 label WAN wan label + 1 2g phy0 label + 2 5g phy1 label + 3 The label MAC address was found in 0xe000. LEDs detailed: The only both visible and controllable indicator is blue:wlan LED. It is not bound by default to indicate activity of any wireless interfaces. Place (WAN->ANT) | Num | GPIO | LED name (LuCI) | Note -----------------|-----|----------------------------------------------------------------------------------------- power | 1 | | | POWER LED. Not controlled with GPIO. hidden_led_2 | 2 | 13 | blue:hidden_led_2 | This LED does not have proper hole in shell. wan | 3 | | | WAN LED. Not controlled with GPIO. hidden_led_4 | 4 | 16 | blue:hidden_led_4 | This LED does not have proper hole in shell. lan | 5 | | | LAN LED. Not controlled with GPIO. noconn_led_6 | 6 | | | Not controlled with GPIO, possibly not connected wlan | 7 | 15 | blue:wlan | WLAN LED. Wireless indicator. noconn_led_8 | 8 | | | Not controlled with GPIO, possibly not connected mt76-phy0 and mt76-phy1 leds also exist in OpenWrt, but do not exist on board. Signed-off-by: Alexey D. Filimonov