ZTE ZXHN H108N is ADSL/ADSL2+ Wi-Fi router based on Broadcom 6328.

DSL will not work at all on devices with BCM63xx DSL chipset (due to unavailability of FLOSS driver for Broadcom chips). Consider this when chosing a device to buy, or when deciding to flash OpenWrt on your device because it is listed as supported.
See Broadcom DSL, Unsupported: DSL modem and Broadcom BCM63xx for details.

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
ZXHN H108Nv1Broadcom BCM63281320864Broadcom BCM43225b/g/n-4-ADSL2+1x 2.0
  1. Download OpenWrt image as shown above.
  2. Turn off modem.
  3. Press “reset” and keeping it pressed, turn on the router.
  4. Wait 20 seconds and then release “reset” button.
  5. Browse to “”
  6. Select the previously downloaded image and press “upgrade”.
  7. Power led will flash from green to red (aprox 2 minutes) and finally stays orange.
  8. Once it finishes, OpenWrt will be installed.

It seems that there are 2 different models identified as H108N, one based on Broadcom 6328 and the other on Realtek RTL8672. OpenWrt is only valid for the model based on Broadcom 6328. Instructions to know our chipset without opening the router:


 password:**** (1234)
        Authenticate Success!
~ $
~ $ cat /proc/cpuinfo
system type             : RTL8672
processor               : 0
cpu model               : 56322
BogoMIPS                : 458.75
tlb_entries             : 64
mips16 implemented      : yes

If the result is this, you can not install OpenWrt on the router.

Version/Model Launch Date S/N OpenWrt Version Supported Model Specific Notes
AZRFC V1.0 - - CHAOS CALMER (15.05.1, r48532) -
Architecture MIPS
Vendor Broadcom
bootloader ?
System-On-Chip Broadcom BCM63281 KFBG
CPU/Speed 320MHz
Flash-Chip Macronix MX25L6406E 8MiB)
RAM Nanya Technology Corporation NT5TU32M16DG-AC (64MiB)
Wireless Broadcom BCM43225 2.4GHz 802.11bgn
Ethernet in-SoC?
Internet ADSL/ADSL2+
USB 1 x ?
Serial ?

Model Number


Photo of front of the casing


Photo of back of the casing

Main PCB

Photo of PCB

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

Serial Port rs232-TTL 3v3.

baudrate 115200

Serial log:

Photo of PCB with markings

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

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

Photo of PCB with markings

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  • Last modified: 2020/05/09 12:12
  • by goonieslacker