[Galaxy S 4 i9505 Original Android Development] hcdaniel:
Bluetooth log

Bluetooth is continuously giving these log messages:

10-28 20:42:20.953 13273 13305 E bt_hwcfg: axi_bridge_lock acquire: Timer expired (62)

From time to time there's a lot w.r.t. bluetooth in the log, pasting the warnings/errors only:

10-28 20:44:12.964 13938 13954 E bt_btif_config: Config is missing adapter section

10-28 20:44:12.964 13938 13954 W bt_btif_config: init unable to load config file: /data/misc/bluedroid/bt_config.conf; using backup.

10-28 20:44:12.964 13938 13954 E bt_btif_config: Config is missing adapter section

10-28 20:44:12.964 13938 13954 W bt_btif_config: init unable to load backup; attempting to transcode legacy file.

10-28 20:44:12.964 13938 13954 E bt_btif_config_transcode: btif_config_transcode unable to load XML file '/data/misc/bluedroid/bt_config.xml': 3

10-28 20:44:12.965 13938 13954 E bt_btif_config: init unable to transcode legacy file; creating empty config.

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager: exception when invoking removeOnUidImportanceListener

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager: java.lang.IllegalArgumentException: Listener not registered: com.android.bluetooth.gatt.ScanManager$2@88b1a13

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityManager.removeOnUidImportanceListener(ActivityManager.java:3552)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.gatt.ScanManager.cleanup(ScanManager.java:157)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.gatt.GattService.cleanup(GattService.java:244)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.btservice.ProfileService.onDestroy(ProfileService.java:211)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.handleStopService(ActivityThread.java:3697)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.access$1700(ActivityThread.java:199)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1686)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.os.Handler.dispatchMessage(Handler.java:106)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.os.Looper.loop(Looper.java:193)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.main(ActivityThread.java:6669)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at java.lang.reflect.Method.invoke(Native Method)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)

10-28 20:44:17.083 13938 13938 W BtGatt.ScanManager:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager: exception when invoking unregisterReceiver(mLocationReceiver)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager: java.lang.IllegalArgumentException: Receiver not registered: com.android.bluetooth.gatt.ScanManager$3@2de1450

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.LoadedApk.forgetReceiverDispatcher(LoadedApk.java:1271)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.ContextImpl.unregisterReceiver(ContextImpl.java:1504)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:659)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.gatt.ScanManager.cleanup(ScanManager.java:178)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.gatt.GattService.cleanup(GattService.java:244)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at com.android.bluetooth.btservice.ProfileService.onDestroy(ProfileService.java:211)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.handleStopService(ActivityThread.java:3697)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.access$1700(ActivityThread.java:199)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1686)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.os.Handler.dispatchMessage(Handler.java:106)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.os.Looper.loop(Looper.java:193)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at android.app.ActivityThread.main(ActivityThread.java:6669)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at java.lang.reflect.Method.invoke(Native Method)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)

10-28 20:44:17.084 13938 13938 W BtGatt.ScanManager:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Maybe it helps to find the issue for the non-working bluetooth.