Docs: Updates to the Download/Test file related to watch setup

    </p>

    <p class="warning">

      <strong>Warning:</strong> Installing a system image on a watch removes all data from the

      <strong>Warning:</strong> Installing a system image on a watch

      removes all data from the

      watch, so you should back up your data first.

    </p>

    </h4>

    <p>

      From the phone, unpair ("Forget") the watch.

      Then on the watch, enable the Developer Options menu and ADB debugging as

      On the watch, enable the Developer Options menu and ADB debugging as

      follows:

    </p>

      </li>

      <li>Scroll to the bottom of the menu. If no <strong>Developer

      Options</strong> item is provided, tap <strong>About</strong>.

      Options</strong> item is provided, tap <strong>System</strong>

      and then <strong>About</strong>.

      </li>

      <li>Tap the build number 7 times.

      </li>

      <li>From the Settings menu, tap the <strong>Developer Options</strong>

      item.

      <li>From the Settings menu, tap <strong>Developer Options</strong>.

      </li>

      <li>Enable ADB debugging.

      </li>

      <li>Use the following <a href="{@docRoot}tools/help/adb.html">adb

      command</a> to confirm that the watch is available for flashing:

      command</a> to confirm that the watch is recognized.

      You may need to turn ADB debugging off and then on for the watch to

      be recognized:

      <code>adb devices</code>

      </li>

      devices, <code>fastboot oem unlock</code>

      </li>

      <li>On the watch, select the <strong>Unlock</strong> option.

      <li>On the watch, select the option to unlock the bootloader.

      </li>

      <li>Navigate to the directory where you unzipped the system image in Step

      1. At the top level of that directory,

      <li>On your computer, navigate to the directory where you unzipped the

      system image in Step 1. At the top level of that directory,

      execute the <code>flash-all</code> script by typing

      <code>flash-all.sh</code> or, in the case of Windows,

      <code>flash-all.bat</code>. The following may need to

    </h4>

    <p>

        After the <code>flash-all</code> script finishes, your watch reboots.

      After the <code>flash-all</code> script finishes, the watch reboots.

      Only pair the watch with a phone (so you can begin testing the preview)

      by using the instructions in <a href="#set_up_a_phone">Set Up a Phone</a>.

      Additionally, before installing an app, perform the

    </p>

    <ol>

      <li>Open the Settings menu (on the watch).

      <li>Open the Settings menu by long-pressing the physical button.

      </li>

      <li>Scroll to the bottom of the menu and tap <strong>About</strong>.

      <li>Tap the build number 7 times.

      </li>

      <li>From the Settings menu, tap the <strong>Developer Options</strong>

      item.

      <li>From the Settings menu, tap <strong>Developer Options</strong>.

      </li>

      <li>Enable ADB debugging.

      </li>

      <li>Connect the watch to your computer and tap <strong>Always allow from

      this computer</strong>.

      this computer</strong>. (You may need to turn ADB debugging off

      and then on, to be prompted to always allow ADB debugging from

      the connected computer.)

      </li>

      <li>Use the following adb command to start the device in fastboot mode:

      devices, <code>fastboot oem lock</code>

      </li>

      <li>On the watch, continue the boot by choosing

      <strong>Start</strong> and touching <strong>'0'</strong>.

      <li>On the watch, continue the boot as follows:

      On an LGE Watch Urbane 2nd Edition, choose

      <strong>Start</strong> and touch <strong>'0'</strong>.

      On a Huawei Watch, confirm that <strong>Reboot</strong> is chosen and

      long-press the physical button.

      </li>

    </ol>

    <p>

      After you install the beta version of the companion app on a phone,

      you can pair the phone to the watch:

      unpair ("Forget") any obsolete watch pairings, if necessary.

      Then you can pair the phone to a newly-imaged watch:

    </p>

    <ol>