MikroTik LHG-HB platform

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The LHG-HB platform is the board design based on the Qualcomm Atheros QCA9533 used in various MikroTik wireless devices with 802.11b/g/n radio, 1x 10/100 Mbps Ethernet port, 16 MB SPI NOR flash and 64 MB RAM:

and possibly also (untested):

The LHG 2 (Light Head Grid) is a compact and light 802.11b/g/n outdoor wireless device with an integrated dual polarisation 18 dBi grid antenna and one 10/100 Mbps Ethernet port for point to point links or for use as a CPE.

MikroTik LHG 2 (RBLHG-2nD) front view MikroTik LHG 2 (RBLHG-2nD) bottom view MikroTik LHG 2 (RBLHG-2nD) rear view

The SXTsq Lite2 is a compact and lightweight 802.11b/g/n outdoor wireless device with an integrated 10 dBi antenna for point-to-point links or as a CPE unit, compact, weatherproof and easy to mount.

MikroTik SXTsq Lite 2 (RBSXTsq2nD) front view MikroTik SXTsq Lite 2 (RBSXTsq2nD) rear view MikroTik SXTsq Lite 2 (RBSXTsq2nD) side view

ModelUnsupported Functions
RBSXTsq2nD (SXTsq Lite2)

NB: The SXTsq Lite2 is the exact same hardware has the LHG 2, with a different case and antenna: it can run the LHG 2nD image just fine.

None at this time.

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
RBLHG-2nD (LHG 2nD)Qualcomm Atheros QCA95536501664Atheros AR9531b/g/n-1---
RBSXTsq2nD (SXTsq Lite2)Qualcomm Atheros QCA95536501664Atheros AR9531b/g/n-1---

FIXME Find out flash layout, then add the flash layout table here (copy, paste, modify the example).

Please check out the article Flash layout. It contains examples and explanations that describe how to document the flash layout.

FIXME The instructions below are for Broadcom devices and only serve as an example.
Remove / modify them if they do not apply to this particular device!

This section deals with

  • How you install OpenWrt from a device freshly opened
  • 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.

  • Browse to
  • Upload .bin file to router
  • Wait for it to reboot
  • Telnet to and set a root password, or browse to if LuCI is installed.

Specific values needed for tftp

FIXME Enter values for “FILL-IN” below

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


FIXME These are generic instructions. Update with your router's specifics.

  • Browse to LuCI Upgrade URL
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot

If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line. There are two command line methods for upgrading:

  • sysupgrade
  • mtd

Note: It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.


  • Login as root via SSH on, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc


If sysupgrade does not support this router, use mtd.

  • Login as root via SSH on, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
mtd write /tmp/xxx.abc linux && reboot

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

The default network configuration is:

Interface Name Description Default configuration
br-lan LAN & WiFi
wlan0 WiFi Disabled

FIXME Please fill in real values for this device, then remove the EXAMPLEs

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) EXAMPLE 4

The MikroTik LHG-HB platform has the following buttons:

Reset reset

Note: the reset button shares GPIO 16 with the disabled rssihigh LED. To avoid conflicting behaviour, only the button is registered.

The hardware.button page contains information on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.


  1. This table is automatically generated, once the correct filters for Brand and Model are set.
  2. If you see “Nothing.” instead of a table, please edit this section and adjust the filters with the proper Brand and Model. Just try, it's easy.
  3. If you still don't see a table here, or a table filled with '¿': Is there already a Techdata page available for MikroTik LHG-HB platform ? If not: Create one.
  4. If you see a table with the desired device data, everything is OK and you can delete this text and the <WRAP> that encloses it.
  5. If it still doesn't work: Don't panic, calm down, take a deep breath and contact a wiki admin (tmomas) for help.

Insert photo of front of the casing

Insert photo of back of the casing

Backside label:
Insert photo of backside label

Note: This will void your warranty!

FIXME Describe what needs to be done to open the device, e.g. remove rubber feet, adhesive labels, screws, …

  • To remove the cover and open the device, do a/b/c

Main PCB:
Insert 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:
Insert photo of PCB with markings for serial port

FIXME Replace EXAMPLE by real values.

Serial connection parameters
for MikroTik LHG-HB platform @@Version@@
EXAMPLE 115200, 8N1

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

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port

None so far.

N/A (OEM bootlog is disabled).


Space for additional notes, links to forum threads or other resources.

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  • Last modified: 2022/05/05 11:40
  • by f00b4r0