Not returning from accept when trying to listen to bluetooth communication - Android -

i'm trying establish bluetooth communication between android phone/tablet (4.0.3), , bluetooth device, earring reader (destron fearring dtr3e, in case want know, don't suppose do).

i paired phone reader (the reader has pairing passcode on tag) bluetooth settings, bluetooth on of course, , i'm trying listen reads device, means of bluetoothserversocket. problem accept call never returns, doing wrong. communication done using rfcomm.

code:

private class acceptthread extends thread {         private final bluetoothserversocket mmserversocket;          public acceptthread() {             // use temporary object later assigned mmserversocket,             // because mmserversocket final             bluetoothserversocket tmp = null;             try {                 // my_uuid app's uuid string, used client code                  string uuid  = "00001101-0000-1000-8000-00805f9b34fb";                 tmp = bluetoothadapter.listenusinginsecurerfcommwithservicerecord("pdfparserserver", uuid.fromstring(uuid));             } catch (exception e) {             e.printstacktrace();             }             mmserversocket = tmp;         }          public void run() {             bluetoothsocket socket = null;             // keep listening until exception occurs or socket returned             while (true) {                 try {                     socket = mmserversocket.accept();                 } catch (ioexception e) {                     break;                 }                 // if connection accepted                 if (socket != null) {                     // work manage connection (in separate thread)                      try {                         mmserversocket.close();                     } catch (ioexception e) {                         e.printstacktrace();                     }                     break;                 }             }         }          /** cancel listening socket, , cause thread finish */         public void cancel() {             try {                 mmserversocket.close();             } catch (ioexception e) { }         }     } 

is there missing?

thank you!

the reason cause code never come accept that, device "destron fearring dtr3e" trying connect to, has bluetoothserver socket , not bluetooth client, hence, device might waiting connect it, in stead of creating bluetoothserver socket , waiting connect android device, should read specs on device , make sure 1 has open connection on "destron fearring dtr3e" socket...

hope helps...

regards!