title: devicePolicyManager.lockNow() is not working for Motorola Tablets
body: <pre><code>public final static void lockDevice()
      {
          try
          {
              if (devicePolicyManager.isAdminActive(adminComponent))
              {
                  devicePolicyManager.lockNow();
              }
          }
          catch (final Exception ex)
          {
              ...
          }
      }
  </code></pre>
  
  <p>The above code does not throw any exception nor it locks the screen for motorola xoom tablets only. (Both Homeycomb and Icecream Sandwitch) The same code works perfectly on other Homeycomb and ICS tablets.</p>
  
  <p>I googled, but did not get any solution. Any Ideas.....?</p>