JCG Q20

abgn+ac+ax (AX1800)
wireless router
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	JCG Q20
FCC ID	none specified
Type	wireless router
CPU1	MediaTek MT7621AT
CPU1 Type	MIPS 1004Kc
CPU1 Speed	880 MHz ( 2 cores ) 16-bit
Flash1 Chip	ESMT F59L1G81MB
Flash1 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 Size	256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RAM1 Chip	Winbond W632GU6NB-11
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
Expansion IF types	none specified
Power	12 VDC, 1 A
Connector type	barrel
Flags: Wi-Fi 6
Other
Default SSID: ChinaNet-xSMG , ChinaNet-xSMG-5G Default IP address: 192.168.2.1 the IP 192.168.2.1 is used by 297 additional devices of which 0 are JCG devices
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7905DAN
Chip2	MediaTek MT7975DN
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
802.11a	up to 54 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	MediaTek MT7905DAN
Chip2	MediaTek MT7975DN
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
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 JCG device with specifications, see JCG.

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

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 256-QAM) = AX1800 class

Overview

Review on acwifi.net

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
OpenWrt Target: ramips
OpenWrt Subtarget: mt7621
OpenWrt Package architecture: mipsel_24kc
Support started version: 21.02.0
Current supported version: 23.05.5

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