Huawei HG635

You must set your TCP/IP v4 protocol at your computer to:

  1. IP:
  2. Netmask:
  3. Gateway:
  4. DNS: (optional, can be blank).


  1. Power off the router.
  2. Press reset button near the antenna.
  3. Keep it pressed while powering up during ~20+ seconds.
  4. Acces to and upload binary file.
  5. Wait until router reboots.

The default network configuration is:

Interface Name Description Default configuration
br-lan LAN & WiFi
eth0.1 LAN ports (1 to 4) bridged
eth0.2 WAN port (WAN) nat (WAN)
wlan0 WiFi bridged (disabled)
wlan1 WiFi bridged (disabled)

This is an example to configure the switch: numbers 0-2 will be lan, labeled as Ports LAN1X, LAN2X, LAN3X on the unit, number 3 (LAN4X) will be the Internet (WAN), 8 is the internal connection to the router itself. Don't be fooled: vlan1 = eth0.1, vlan2 = eth0.2 and so on.

Port Switch port Mode
1 0 lan
2 1 lan
3 2 lan
4 3 lan
WAN 4 :?: Internet (WAN)
n/a 5t :?: to CPU


Instruction set MIPS
Vendor Broadcom
bootloader cfe
System-On-Chip Broadcom BCM63168
CPU @Frq BMIPS4350 V8.0 @ 400 MHz
Flash-Chip NAND
Flash size 128MB
RAM-Chip DDR2-800
RAM size 128MB
Wireless BCM4350 ac/a/b/g/n (onboard) + BCM6362 b/g/n (SoC)
Ethernet BCM53124, 5x 1000M
USB 1x 2.0
Serial Yes

Photo of front and back of the casing:


Opening the case

Note: This will void your warranty!

  • To remove the cover do a/b/c

Main PCB:

port.jtag general information about the JTAG port, JTAG cable, etc.


port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:

Serial port settings 115200, 8N1

1 - RXD
2 -
3 - Probably VCC (3V3)
4 - GND
5 - TXD

Photo of PCB with markings

Read: System configuration: Leds to configure the leds

Pin Event Active Soldered

hardware.button on howto use and configure the hardware button(s).

Pin Event Active Soldered

HELO CPUI L1CI HELO CPUI L1CI DRAM ---- PHYS STRF 400H PHYE DDR3 SIZ4 SIZ3 SIZ2 DINT USYN LSYN MFAS LMBE RACE PASS ---- ZBSS CODE DATA L12F MAIN CFE version 1.0.38-114.174 for BCM963268 (32bit,SP,BE) Build Date: Sat Nov 9 13:59:00 CST 2013 (l00184769@localhost) Copyright (C) 2000-2011 Broadcom Corporation. NAND flash device: name , id 0x98d1 block 128KB size 131072KB External switch id = 53125 Chip ID: BCM63168D0, MIPS: 400MHz, DDR: 400MHz, Bus: 200MHz Main Thread: TP0 Memory Test Passed Total Memory: 134217728 bytes (128MB) Boot Address: 0xb8000000


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  • Last modified: 2020/06/10 19:15
  • by danitool