====== Flashin OpenWRT on ZBT APG621 ======
===== Introduction =====
  * The ZBT APG621 is an outdoor 5G single radio unit.
  * It comes standard with an OEM version of OpenWRT
  * We like the hardware because it is
        * Cost effective
        * Runs OpenWRT (Which means we can use it with MESHdesk and APdesk)
        * Easy to flash
  * There is no standard release of OpenWRT for this device but the Atheros DB120 reference board firmware seems to work well enough for us.
  * https://forum.openwrt.org/t/alternative-firmware-for-zbt-apg621/37099

===== Instructions =====
  * We assume that you have some form of the DB120 OpenWRT firmware.
  * The device has a very handy bootloader called BREED.
  * To get the bootloader in flash mode you can do the following.
     * Connect the device to a computer which is on the 192.168.1.x sub-net. (e.g. give your computer an IP of 192.168.1.10)
     * Run a continuous ping to 192.168.1.1.
     * **Before** applying  power, press the reset button and keep it in while powering up the device.
     * The device should start answering pings after ~15seconds.
     * Now you can release the reset button.
     * Go to your browser and enter the following URL
     * http://192.168.1.1

==== The Interface ====
  * Unfortunately the UI is in Chinese so you have to 'feel' your way around.

{{ :user_guide:zbt:breed_1.png?nolink |}}

  * Select the second item on the left hand side
  * Select the item **under** Bootloader on the main page and pick your firmware file
  * Keep the check mark and click the only button (We assume it says something like upload)
  *  It will submit the firmware and the next screen will give some info on the firmware

{{ :user_guide:zbt:breed_2.png?nolink |}}

  * Click the button at the bottom to start flashing

{{ :user_guide:zbt:breed_3.png?nolink |}}

  * You will see a progress bar that will give an indication how the procedure progresses.

{{ :user_guide:zbt:breed_4.png?nolink |}}