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 <m.ismael@gmail.com>
