====== Reflash using an USB Stick ======

YouTube video (demo): http://youtu.be/axQvgqvlhcU

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 [[openwrt:hardware|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 '''192.168.1.2''', subnet mask '''255.255.255.0'''.
  * Start to ping 192.168.1.1 (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:

    telnet 192.168.1.1

  * 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/
  ls
  mtd -r write <your filename> firmware

  * The device reboots automatically after successfully flashing. 

If the mount does not work, you can do:

  mount_root

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

  reboot -f

Source (http://wiki.openwrt.org/doc/howto/generic.failsafe)