title: iOS:Accessing OlderBluetoothDevice below 4.0
body: <p>Iam developing iphone application that is based on bluetooth .i have developed an application using corebluetooth frame work and tested to connect the external hardware i.e smart watch.By knowing that its not working to detect the devices . I have developed other example by using external accessory framework .its showing no accessories connected .The documentation specifies that the protocols are added to the plist file under Supported external accessory protocols .</p>
  
  <p>my question is :</p>
  
  <p>1)what are the protocols ?from where i can get that ?</p>
  
  <p>2)how can i make the 4.0 bluetooth to detect the lower compatibly devices.</p>
  
  <p>3)IS there any solution to create protocol and place in the plist file</p>
  
  <p>Are there any sample apps for this </p>