Hongdian H7920 v40
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| bgn (N300) | |
|---|---|
| wireless router | |
 | |
| 3rd Party Firmware | |
| dd-wrt | Status Unknown |
| OpenWrt | Supported |
| Tomato any flavor | Incompatible |
| Gargoyle | Status Unknown |
| Platform | |
| Brand • Model • Rev | Hongdian H7920 v40 |
| FCC ID | none specified |
| Type | wireless router |
CPU1  | MediaTek MT7628NN |
| CPU1 Type | MIPS 24KEc |
| CPU1 Speed | 580 MHz |
| Flash1 Chip | Brand? Model? |
| Flash1 Size | 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br /> |
| 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 MT7628NN |
| Ethernet Port Count | 1-100MbE-LAN |
| Wired Standard | IEEE 802.3i/3u |
|
802dot11 OUI: none specified | |
| Stock bootloader | U-Boot |
| Expansion IF types | Mini PCIe for modem |
| Mini PCIe slots | 1 |
| Power | 5-36 VDC, 1.5 A |
| Serial Port (UART) | yes, 3.3V TTL, (115200 8N1) |
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| Other | |
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| 3rd Party Firmware Support |
OpenWrt • (List | Dev | DLs) |
| Radio 1 | |
| Chip1 | MediaTek MT7628NN |
| 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 |
For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
- • 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class
Flashing
 | NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power. |
Flashing OpenWrt
Target: ramips
Subtarget: mt76x8
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 24.10.3
Current supported version: 25.12.2
Subtarget: mt76x8
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 24.10.3
Current supported version: 25.12.2
WLAN Hardware: MediaTek MT7628NN
Installation method(s):
see git-commit
Install Comment:
Original Firmware Dump / More details: https://blog.gov.cooking/archives/research-hongdian-h7920-v40-and-flash.html
Installation method(s):
see git-commit
Install Comment:
Original Firmware Dump / More details: https://blog.gov.cooking/archives/research-hongdian-h7920-v40-and-flash.html
| git • >> |
|---|
ramips: add support for Hongdian H7920 v40 This is an industrial 4G router equipped with OpenWrt SNAPSHOT OEM customized version WARNING: The original firmware device tree is modified from evb boards, and the device tree name is evb board. This submitted device tree is a modified version, which deletes the non-this-device parts and adds GPIO watchdog. Specification: - SoC: MediaTek MT7628NN - Flash: 16 MB - RAM: 128 MB - Power: DC 5V-36V 1.5A - Ethernet: 1x WAN [slot not install], 1x LAN (10/100 Mbps) - Wireless radio: 802.11n 2.4g-only [antenna not install] - LED: System/Power (RUN): GPIO/37 active-low Modem: GPIO/3 active-low RF (Modem Signal): GPIO/2 active-low - Button: WPS / RESET: GPIO/11 active-low - UART: 1x UART on PCB - 115200 8N1 - Serial / COM: 1X RS232/RS485 on board (GPIO/6 hi:RS485 lo:RS232) - GPIO Watchdog: GPIO/0 mode=toggle timeout=1s - Modem: 1x Built-in modem on board (Power: GPIO/4 active-high) - PCIe: 1x miniPCIe for modem [slot not install] - SIM Slots: 1x SIM Slots Issue: - Factory partition not store mac address on original firmware Flash instruction: Using SSH/Telnet: 1. Connect the board to the computer via RJ45 Ethernet 2. Login 192.168.8.1 with root password "superzxmn" (SSH Port 22, Telnet Port 5188) 3. Download openwrt firmware on the computer. 4. Use scp or sftp put firmware to board /tmp 5. Use command "mtd -r write openwrt-ramips-mt76x8-hongdian_h7920-v40-squashfs-sysupgrade.bin firmware" to flash Original Firmware Dump / More details: https://blog.gov.cooking/archives/research-hongdian-h7920-v40-and-flash.html |
