Reflash using an USB Stick

YouTube video (demo):

The following howto works if you already have USB driver (pre) installed on the device. This can be manually or within a custom image. The HowTo applyies to the most of devices, it uses the TP-Link MR3020 as an example.

  • Download the image file to your computer, refer to our hardware list choosing the correct file.
  • Power off the MR3020.
  • Take your USB device and copy the downloaded file onto.
  • Connect the MR3020 to your computer via a Ethernet cable.
  • Set your computer's IP address to '', subnet mask ''.
  • Start to ping (this is the failsave IP address) infinitely.
  • Power the MR3020 on and when the WPS Button starts to blink, push it (then it will blink faster). Note: The button name for activating the failsafe mode may vary per device (for example on the 'TP-Link WR1043ND v1': the 'WPS' button is named 'OSS').
  • You should see the ping getting a response.
  • Type:
  • Plug your USB Device to the pbx-router
  • Do the following command:
 /etc/init.d/boot start        (This will return some error messages - ignore these)
  • Then type:
mount /dev/sda1 /mnt
cd /mnt/
mtd -r write <your filename> firmware
  • The device reboots automatically after successfully flashing.

If the mount does not work, you can do:


Which mounts your root partition in order you can edit files. After you have finish, type:

reboot -f

Source (