Hanyang CJ-Hello HYC-G920

abgn+ac (AC1200)
AC1200 Wireless Router
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Hanyang CJ-Hello HYC-G920
FCC ID	none specified
Type	wireless router
CPU1 Y	MediaTek MT7621AT
CPU1 Type	MIPS 1004Kc
CPU1 Speed	880 MHz ( 2 cores ) 16-bit
Flash1 Chip	Winbond 25Q128FVSG
Flash1 Size	16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
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 />
RAM1 Chip	SK hynix H5TQ2G63FFR
ETH chip1	MediaTek MT7621AT
Switch	MediaTek MT7621AT
Ethernet Port Count	1-1GbE-WAN 5-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: none specified
Stock bootloader	U-Boot
Expansion IF types	USB 2.0
USB ports	1
USB Hub Compatible	Untested
Power	5 VDC, 2 A
Connector type	barrel
Serial Port (UART)	yes, 3.3V TTL, (57600 8N1)
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7602EN
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 MT7612EN
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

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

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

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

Overview

See also: ASUS RT-AC57U

Flashing

Flashing OpenWrt

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

Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 23.05.0
Current supported version: 25.12.3

LAN Hardware: MediaTek MT7621AT
WLAN Hardware: MediaTek MT7602EN, MediaTek MT7612EN
Installation method(s):
see devicepage
Install Comment:
More details on GitHub https://github.com/openwrt/openwrt/pull/10696
Recovery method(s):
see devicepage

git • >>

ramips: Add support for CJ-Hello HYC-G920 Hanyang Digitech Co., Ltd. MSIP-CMM-HYD-HYC-G920 CJ-Hello HYC-G920 SoC : MediaTek MT7621AT RAM : 256M (SK hynix H5TQ2G63FFR) FLASH : 16MB (Winbond W25Q128BV) WiFi : MediaTek MT7602EN bgn 2SS WiFi : MediaTek MT7612EN nac 2SS BTN : Reset LED : - Power RED - WAN Green - LAN {1-4} - WiFi 2.4 GHz Blue - WiFi 5 GHz Blue - USB Green **For MT7621 stage1 DDR Test** UART : J4 GND - 3V3 - TX - RX - GND / 57600-8N1 ``` MT7621 stage1 code 10:33:55 (ASIC) CPU=500000000 HZ BUS=166666666 HZ ``` **For u boot environment** UART : J4 GND - 3V3 - TX - RX - GND / 115200-8N1 **UART Menu** ``` Please choose the operation: 1: Load system code to SDRAM via TFTP. 2: Load system code then write to Flash via TFTP. 3: Boot system code via Flash (default). 4: Entr boot command line interface. 7: Load Boot Loader code then write to Flash via Serial. 9: Load Boot Loader code then write to Flash via TFTP. ``` **Steps** Press 4: Entr boot command line interface. On the pormpt enter. `setenv firmware_size 0xf60000` Then enter. `saveenv` Then enter. `reset` **Device will reboot** Set your IP 192.168.100.100/24 Connect your lan cable to wan port. **On the UART Menu** Press 2: Load system code then write to Flash via TFTP. Warning!! Erase Linux in Flash then burn new one. Are you sure?(Y/N) **enter** `Y` Please Input new ones /or Ctrl-C to discard Input device IP (192.168.100.55) ==:`192.168.100.55` Input server IP (192.168.100.100) ==:`192.168.100.100` Input Linux Kernel filename () ==:`openwrt-22.03.0-ramips-mt7621-hanyang_hyc-g920-squashfs-sysupgrade.bin` After uploading firmware image, device will boot Openwrt. Signed-off-by: Muhammad AL-Qadhy