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POAndroid Bluetooth java.io.IOException: Connection refused?
 

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    <p>I need to connect a <a href="http://www.socketmobile.com/products/embedded-wireless-communications/kwikblue4-module/" rel="nofollow">KwikBlue-2 Module Development Kit</a> to the Android <a href="http://developer.android.com/resources/samples/BluetoothChat/index.html" rel="nofollow">BluetoothChat example</a> on a Nexus One using SPP. I was able to connect and exchange serial data (once) using tera term after changing the UUID in the <a href="http://developer.android.com/resources/samples/BluetoothChat/index.html" rel="nofollow">BluetoothChat example</a> example to 00001101-0000-1000-8000-00805F9B34FB for SPP devices. Then I power cycled the <a href="http://www.socketmobile.com/products/embedded-wireless-communications/kwikblue4-module/" rel="nofollow">KwikBlue-2 Module Development Kit</a> to verify that the connection was repeatable but continually get <code>java.io.IOException: Connection refused</code> when I try to connect. Any ideas?</p> <pre><code>43.200: ERROR/BluetoothEventLoop.cpp(96): event_filter: Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/219/hci0 52.200: ERROR/BluetoothChat(707): - ON PAUSE - 54.470: ERROR/BluetoothService.cpp(96): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session) 54.520: ERROR/BluetoothChat(707): + ON RESUME + 54.530: ERROR/BluetoothService.cpp(96): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session) 54.620: ERROR/BluetoothService.cpp(96): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session) 55.520: ERROR/BluetoothEventLoop.cpp(96): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/219/hci0/dev_00_60_57_FD_42_18 56.010: ERROR/BluetoothChatService(707): unable to connect 56.010: ERROR/BluetoothChatService(707): java.io.IOException: Connection refused 56.010: ERROR/BluetoothChatService(707): at android.bluetooth.BluetoothSocket.connectNative(Native Method) 56.010: ERROR/BluetoothChatService(707): at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:204) 56.010: ERROR/BluetoothChatService(707): at com.cti.BluetoothChat.BluetoothChatService$ConnectThread.run(BluetoothChatService.java:329) 00.110: ERROR/BluetoothEventLoop.cpp(96): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/219/hci0/dev_00_60_57_FD_42_18 </code></pre>
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    1. COShot in the dark - have you checked if the kit and the Nexus One are still paired after you power cycled?
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    2. COYes. Still paired, just not connected.
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