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I wrote a little application for Android 2.3 using Eclipse Galileo. The application is based on Bluetooth Chat example published on Google.

The problem is that bluetooth connection fails. I connect my Android with Bluetooth access point via SPP - serial port profile). The reasons why the connection fails are not clear for me. I see the following in logs: 

10-09 18:52:35.989: ERROR/BluetoothEventLoop.cpp(162): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/18286/hci0/dev_00_1A_7D_0A_B7_5F
10-09 18:58:35.239: ERROR/(18269): ****************search UUID = 1101***********
10-09 18:58:35.489: ERROR/BluetoothEventLoop.cpp(162): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/18286/hci0/dev_00_1A_7D_0A_B7_5F
10-09 18:58:35.529: ERROR/BluetoothEventLoop.cpp(162): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/18286/hci0/dev_00_1A_7D_0A_B7_5F

10-09 18:58:35.669: ERROR/BLZ20_WRAPPER(20769): ##### ERROR : btlif_process_con_rsp: no bt sock found, scn 1#####

Any help is appreciable

Robin Kanters
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Alexeev Valeriy
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  • Are You using Samsung device? I've just faced the same issue on galaxy ace. – sandrstar Dec 09 '11 at 05:03
  • Does it connect and then disconnect or not connect at all? Post your code to set up a connection. – ethan Dec 22 '11 at 16:26
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    1. The log above is written from Samsung S5510 (galaxy mini). 2. The problem is already gone and as I understood it was related to UUID. I've changed UUID to this one presented somewhere in web: 00001101-0000-1000-8000-00805F9B34FB. After that the message with BLZ20_WRAPPER didnt' appear anymore. – Alexeev Valeriy May 04 '12 at 21:04
  • Strangely, I already use this UUID and I still get this error. – Tylo May 14 '12 at 21:03
  • Jepp me too - using different Samsung Devices, so far this error is occasionally appearing on a Samsung Galaxy SII (GT-I9100), I am using the same UUID as stated above. – AgentKnopf Jun 29 '12 at 07:25
  • In addition: This mostly happens when I switch between bluetooth devices (SPP Printers) like: Switch on Printer A, print, switch Printer A off, Switch on Printer B, print, switch it off, switch on Printer A, print ..... Plus: I always close the socket connection right after printing, as otherwise I had a lot of trouble, with the Bixolon SPP getting into a messed up and unrecoverable state – AgentKnopf Jul 04 '12 at 08:06

2 Answers2

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I think it may be related to a bug in the samsung bluetooth stack related to SSP connections.

check this link out: http://www.samsunggalaxysforum.com/firmware-problems/connection-problems-sgs-bluetooth-spp-device/

One solution I had was if I detected a blutooth error in my app on a samsung device in software I would turn off the bluetooth wait 5 seconds and turn it back on.

SashiOno
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I think you using wrong UUID
UUID should be 00001101-0000-1000-8000-00805f9b34fb

If UUID is wrong not able to connect.

Arulselvam
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