Preparing Hardware

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To make a Meteobridge out of the pocket WLAN routers introduced below, you simply have to install an applicable Meteobridge firmware image. Flashing the firmware can mostly be done with the firmware update functions the router's stock firmware does provide. By doing so you will void the manufacturers warranty, but having the cheap price in mind you will certainly not face a substantial financial risk in the unlikely event that you brick the router.

If you don't like the idea of flashing devices, you can also reach out for a Meteobridge reseller, who has Meteobridges on standard HW already flashed and fully licensed in Where to Buy? section.

If you own a Meteobridge PRO, please ignore these pages completely as you unit is already flashed the right way in the factory.

Flashing Meteobridge Firmware to TL-MR3020

Please consult the TP-Link manual to understand how to get access with your browser to its web interface. What the manual will tell you is basically that you have to connect your PC/Laptop via Ethernet cable, and log in to the router's web interface (IP is 192.168.0.254, login name is "admin", password: "admin"). When you have access to web interface of TL-MR3020, overwrite factory firmware like a regular firmware update by meteobridge-tl-mr3020-v1.4.bin. Wait until unit restarts. After that it will be a Meteobridge client in standard configuration receiving an IP via DHCP from your router in the LAN.

Flashing Meteobridge Firmware to TL-MR3040 (Version 2.x)

This firmware image is just valid for the 2.x version of the MR3040. You have a 2.x version of this router if it has the 3G/WSP/AP switch at the side. Please consult the TP-Link manual to understand how to get access with your browser to its web interface. What the manual will tell you is basically that you have to connect your PC/Laptop via Ethernet cable, and log in to the router's web interface (IP is 192.168.0.1, login name is "admin", password: "admin"). When you have access to web interface of TL-MR3040, overwrite factory firmware like a regular firmware update by meteobridge-tl-mr3040v2-v1.4.bin. Wait until unit restarts. After that it will be a Meteobridge client in standard configuration receiving an IP via DHCP from your router in the LAN. Please note that the TL-MR3040 does not provide slow blinking during boot. So LEDS will mainly stay dark until loading of Meteobridge application stack is indicated by fast blinking. This is just an oddity with the LEDs that does not have an impact on proper operation. You can find out on page "System Tools -> Firmware Upgrade" of your router if it is a hardware version 1.x or 2.x.

Flashing Meteobridge Firmware to TL-WR703N (Versions 1.0 to 1.6)

As TL-WR703N does only come with a Chinese web interface, it might be a bit tricky to find the right menu item to initiate firmware update. First you have to login with your browser. To achieve that you have to connect your PC/Laptop via ethernet cable, and log in to the router's web interface (IP is 192.168.1.1, login name is "admin", password: "admin").

When you have access to web interface of TL-WR703N, you select the item at the bottom of the left menu items, marked in light red on the left picture below (system screen). Next you choose sub menu item as marked in light red in the right picture below (flash screen) and browse to target file by pressing light red marked file select dialog in the middle of the screen. You find Meteobridge firmware for this device here: meteobridge-tl-wr703n-v1.4.bin.

Finally, a "are you sure" dialog will pop up, please press "yes" button and wait until progress bar has reached 100%. Unit will reboot automatically. After reboot it will be a Meteobridge in standard configuration receiving an IP via DHCP from your router in the LAN.

Flashing Meteobridge Firmware to WL-330N3G (newest version no longer flashable)

As ASUS WL-330N3G cannot be flashed by its stock web interface, it is necessary that you setup a TFTP environment on your Host PC to transfer the flash data via Ethernet to WL-330N3G. Using TFTP is quite simple.

First of all the router needs to toggled into "TFTP update mode". This is done by keeping the button on the top pressed for 5-10 seconds while doing a power cycle. After a couple of seconds the power LED starts a very slow blinking. You can now release the button. Router now waits for being firmware-updated via TFTP.

Sections below describe how to do it for Linux and Windows 7.

Flashing via TFTP on Linux

TFTP update does not need any additional software installed, your Linux already has all you need. Flashing is very straight forward, just execute the script below.
#!/bin/sh
#
if [ "$1" = "" ]
then
  echo "error: flash sys file missing as parameter"
  exit 1
else
  echo "power cycle WL-330N3G with button pressed and wait"
  echo "until power LED does go off and on again. Then "
  echo "release button and press <RETURN>."
  read a
  echo "start flashing..."
  ifconfig br0:0 192.168.1.20
  echo -ne "binary\ntrace\nrexmt 1\nput $1\nquit\n" | tftp 192.168.1.1
  echo "...transfer done."
  echo "Wait until unit does reboot (will take at least 2 minutes). "
  echo "Do not remove from power during flash process!"
fi

The script needs to be called with the flash update file meteobridge-wl-330n3g-v1.2.sys as parameter. Please execute the script as root, otherwise "ifconfig" and "tftp" will not do or will ask for root password. "ifconfig" sets a virtual ethernet adapter with IP 192.168.1.20 on your Linux box, which is the IP the router expects to get the firmware update from.

Flashing via TFTP on Windows 7

First you have to enable the TFTP service of your Windows 7. You can do that by

  1. Open Control Panel > Programs and Features
  2. Click "Turn Windows features on or off" on left side menu
  3. Enable "TFTP Client" then click OK button

Next step is to set the IP of your hosts Ethernet adapter to "192.168.1.20". This will disconnect your Host from your network (as far as your equip is not in the 192.168.1.x class c subnet) but it is necessary to use this distinct IP address in order to make the WL-330N3G to accept the flash data transfer. If you dont know how to set your Ethernet adapter to a static IP, please have a look here.

When TFTP is enabled and IP of your host PC is set to 192.168.1.20 we can start flashing. Please open a CMD shell and type in the command:
tftp -i 192.168.1.1 put flash-file-name
Here flash-file-name is the name of the image to flash and you find the correct flash file at meteobridge-wl-330n3g-v1.2.sys. When command is done successfully, number of transferred bytes is displayed.

Final Flashing Tasks

IP of router in update mode is 192.168.1.1, which hopefully will not do a collision with one of your other devices. If there is a collision, switch off the other devices during flash. After data has been transferred via TFTP you have to wait a couple of minutes until flash process inside the router is done and router restarts itself. Restart switches off all LEDs for a short time. Now it is safe to disconnect the router from power. Interrupting the flash processes by a power cycle will brick the router.

Flashing Meteobridge Firmware to DIR-505

D-Link DIR-505 provides a "Router Recovery Mode", but firmware update through this does not work with todays browsers. Therefore, it is recommended to use the firmware update function of the DIR-505's stock firmware. This is done in a few simple steps.

  • Download Meteobridge firmware to your Laptop: meteobridge-dir-505-v1.3.bin (or meteobridge-dir-505l-v1.3.bin if you have a DIR-505L)
  • Set mode switch of DIR-505 to "Router/AP".
  • Power-on DIR-505.
  • Wait until LED switches to green.
  • Connect your laptop with the WLAN the DIR-505 has setup. SSID and passphrase is on a separate card in the box the DIR-505 came with.
  • Start browser on your laptop and direct to "http://192.168.0.1".
  • Cancel internet setup dialog provided by stock firmware.
  • Enter as user "admin" without password.
  • Select "maintenance" tab from the horizontal menu.
  • Select "firmware" tab from the vertical menu.
  • Select downloaded Meteobridge firmware in "firmware upgrade" section and press upload button (picture on the left).
  • DIR-505 checks if firmware is compatible and starts upgrading (picture on the right). When done DIR-505 reboots as a Meteobridge.

Flash Again

When you need to flash a new Meteobridge firmware to your TL-MR3020, TL-MR3040, TL-WR703N or DIR-505, you can do that by calling the URL "http://ip-of-your-meteobridge/cgi-bin/fwupdate.cgi". This will shutdown some running services and will bring you to the openwrt SW stack below Meteobridge application software stack. If your device cannot load Meteobridge application stack from the Internet for some reason, you can also directly access openwrt web interface by browsing to "http://ip-of-your-meteobridge-device/cgi-bin/luci". Login with your Meteobridge password and go to "System" tab. Select sub tab "Backup / Flash Firmware" and use offered "Flash new firmware" section. Unmark "keep settings" option and start flashing. Keep device connected to power, it will restart automatically. If you have a WL-330N3G, this always needs to be flashed with the TFTP environment as in setup section for that device explained.