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This wiki is read only and for archival purposes only. >>>>>>>>>> Please use the new OpenWrt wiki at <<<<<<<<<<

zo0ok: created this page to test the Device Page template. I dont know anything about the device, except that it exists and it has currently no status. There is a forum thread:

Asus DSL-N16U

Write a short, relevant description of the device. Include a technical overview, but avoid marketing buzzwords/useless stuff. Two to four sentences is about right.

Supported Versions

Hardware Highlights

VersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSBSerialJTAGLEDButton
MediaTek MT7620A + Ralink RT6336858016, 32128MediaTek MT7620Ab/g/n--5ADSL2+2x 2.0¿¿¿¿

Keep the articles modular

Please include only model specific information, omit bla,bla and put everything generic into separate articles
generic.overview if you have no time to write certain stuff link to this
basic.config should lead the way, do not explain this again
DO NOT provide a complete howto here! Instead groom the general HowTos.


Flash Layout

Please check out the article Flash.Layout. It contains an example and a couple of explanations.

OEM easy installation

FIXME The instructions below are for Broadcom devices and only serve as an example. Don't leave them in place if they do not apply to a particular device!

This section deals with how you install OpenWrt from a device freshly opened. Plus the steps required such as reset to factory defaults if the device has already been configured

Note: Reset router to factory defaults if it has been previously configured.

OEM installation using the TFTP method

Specific values you need

Bootloader tftp server IPv4 address FILL-IN
Bootloader MAC address (special) FILL-IN
Firmware tftp image Latest OpenWrt release (NOTE: Name must contain "tftp")
TFTP Transfer Window FILL-IN seconds
TFTP Window Start approximately FILL-IN seconds after power on
TFTP Client Required IP Address FILL-IN

Upgrading OpenWrt


If you have already installed OpenWrt and like to reflash for e.g. upgrading to a new OpenWrt version you can upgrade using the mtd command line tool. It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

LuCI Web Upgrade Process

Terminal Upgrade Process

  • Login as root via SSH on
  • Use the following commands to upgrade.

cd /tmp/
wget http://
sysupgrade /tmp/

  • If sysupgrade does not support this router, use the following commands.

cd /tmp/
wget http://
mtd write /tmp/ linux && reboot

Basic configuration

Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

Specific Configuration


The default network configuration is:

Interface Name Description Default configuration
br-lan LAN & WiFi
vlan0 (eth0.0) LAN ports (1 to 4) None
vlan1 (eth0.1) WAN port DHCP
wl0 WiFi Disabled

Switch Ports (for VLANs)

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

Port Switch port
Internet (WAN) 4
LAN 1 3
LAN 2 2
LAN 3 1
LAN 4 0

Failsafe mode


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

The Linksys WRT54GL has two buttons. They are Reset and Secure Easy Setup. Here, we merely name the buttons, so we can use them in the above Howto:

Reset reset
Secure Easy Setup ses



Instruction set: MIPS / ARM / PowerPC / SPARC / Ubicom32 / x86 /AVR32 / ETRAX CRIS / …
Vendor: Qualcomm Atheros / Lantiq / MediaTek / Broadcom / Ikanos / Marvell / Ingenic Semiconductor / Freescale Semiconductor / Cavium
Bootloader: U-Boot / RedBoot / CFE / …
System-On-Chip: QCA9558-AT4A Rev 2
CPU @Frq MIPS 24Kc V7.4 @400MHz / MIPS 34Kc V x.y @540MHz / MIPS 74Kc Vers. ?.? @720MHz
Flash size: 8192 KiB
Flash Chip: ST 25P64V6P
RAM size: 32 MiB
RAM Chip:
Wireless No1: SoC-integrated: QCA9558-AT4A w/ 3x3 MIMO for 2.4GHz 802.11b/g/n
Wireless No2: distinct Chip: AR9580-AR1A w/ 3x3 MIMO for 5GHz 802.11a/n/ac
Switch: RealTek RTL8366RB (Gigabit, VLAN)
Modem: none / xDSL / DOCSIS / Mobile Wireless/Cellular network
USB: Yes 1 x 2.0 / 3.0
PSU: 12V DC 2.5A / Netgear P030WB120B FIXME
Serial: Yes


Model Number


Photo of front of the casing


Photo of back of the casing

Opening the case

Note: This will void your warranty!

  • To remove the cover do a/b/c

Main PCB

Photo of PCB


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

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

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


Bootloader Mods

  1. you could read about bootloader in general

Hardware mods

  1. as a beginner, you really should inform yourself about soldering in general and then obtain some practical experience!

128MiB RAM Mod


I²C Tiny-USB Mod


OEM bootlog


OpenWrt bootlog



  • ASUS factory firmware and sources available from ASUS support (choose OS "Others"). As of this writing, I see this latest source: "GPL of ASUS DSL-N16 for firmware", 441.66 MBytes, 2016/05/10. The kernel source inside has CONFIG_RALINK_VDSL config option, which looks like an addition.


toh/asus/asus_dsl-n16u.txt · Last modified: 2016/09/23 23:21 by vda