diff --git a/configs/audio/audio_policy_configuration.xml b/configs/audio/audio_policy_configuration.xml
index d37896f..4b1f2d3 100755
--- a/configs/audio/audio_policy_configuration.xml
+++ b/configs/audio/audio_policy_configuration.xml
@@ -1,12 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<!-- add for Samsung LSI model -->
 
 <audioPolicyConfiguration version="1.0" xmlns:xi="http://www.w3.org/2001/XInclude">
 
     <globalConfiguration speaker_drc_enabled="false"/>
 
     <modules>
-        <module name="primary" halVersion="3.0">
+        <module name="primary" halVersion="2.0">
             <attachedDevices>
                 <item>Earpiece</item>
                 <item>Speaker</item>
@@ -18,33 +17,22 @@
             <defaultOutputDevice>Speaker</defaultOutputDevice>
 
             <mixPorts>
-                <!-- Playback(Output) Streams -->
                 <mixPort name="primary-out" role="source" flags="AUDIO_OUTPUT_FLAG_PRIMARY|AUDIO_OUTPUT_FLAG_DEEP_BUFFER">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </mixPort>
-
                 <mixPort name="fast" role="source" flags="AUDIO_OUTPUT_FLAG_FAST">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </mixPort>
-
-                <mixPort name="hdmi" role="source" flags="AUDIO_OUTPUT_FLAG_MULTI_CH">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_5POINT1"/>
-                </mixPort>
-
-                <!-- Capture(Input) Streams -->
                 <mixPort name="primary-in" role="sink">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
-                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_IN_VOICE_UPLINK,AUDIO_CHANNEL_IN_VOICE_DNLINK"/>
+                             samplingRates="48000"
+                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_VOICE_UPLINK,AUDIO_CHANNEL_IN_VOICE_DNLINK"/>
                 </mixPort>
-
             </mixPorts>
-
             <devicePorts>
-                <!-- output devices declaration, i.e. Sink DEVICE PORT -->
+                <!-- Output devices declaration, i.e. Sink DEVICE PORT -->
                 <devicePort tagName="Earpiece" role="sink" type="AUDIO_DEVICE_OUT_EARPIECE">
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_MONO"/>
@@ -61,17 +49,24 @@
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
-                <devicePort tagName="Bt Sco All" role="sink" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET">
+                <devicePort tagName="Dock Headset" role="sink" type="AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET">
                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                             samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
-                <devicePort tagName="Aux Device Out" role="sink" type="AUDIO_DEVICE_OUT_AUX_DIGITAL">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="44100,48000,64000,88200,96000,128000,176400,192000"
-                             channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_2POINT1,AUDIO_CHANNEL_OUT_QUAD,AUDIO_CHANNEL_OUT_PENTA,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_6POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
+                <devicePort tagName="Bt Sco" role="sink" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO">
+                   <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                            samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Bt Sco Headset" role="sink" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET">
+                   <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                            samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
+                </devicePort>
+                <devicePort tagName="Bt Sco Car Kit" role="sink" type="AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT">
+                   <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
+                            samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </devicePort>
 
-                <!-- input devices declaration, i.e. source DEVICE PORT -->
+                <!-- Input devices declaration, i.e. source DEVICE PORT -->
                 <devicePort tagName="Built-In Mic" type="AUDIO_DEVICE_IN_BUILTIN_MIC" role="source">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
@@ -92,11 +87,6 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
                              channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_IN_VOICE_UPLINK,AUDIO_CHANNEL_IN_VOICE_DNLINK"/>
                 </devicePort>
-                <devicePort tagName="Aux Device In" type="AUDIO_DEVICE_IN_AUX_DIGITAL" role="source">
-                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
-                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
-                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_IN_VOICE_UPLINK,AUDIO_CHANNEL_IN_VOICE_DNLINK"/>
-                </devicePort>
                 <devicePort tagName="Voice Call Mic" type="AUDIO_DEVICE_IN_VOICE_CALL" role="source">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
@@ -107,42 +97,49 @@
                              samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"
                              channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO,AUDIO_CHANNEL_IN_FRONT_BACK,AUDIO_CHANNEL_IN_VOICE_UPLINK,AUDIO_CHANNEL_IN_VOICE_DNLINK"/>
                 </devicePort>
-
             </devicePorts>
-
+            <!-- route declaration, i.e. list all available sources for a given sink -->
             <routes>
-                <route sink="Earpiece" type="mix"
+                <route type="mix" sink="Earpiece"
                        sources="primary-out,fast"/>
-                <route sink="Speaker" type="mix"
+                <route type="mix" sink="Speaker"
                        sources="primary-out,fast"/>
-                <route sink="Wired Headset" type="mix"
+                <route type="mix" sink="Wired Headset"
                        sources="primary-out,fast"/>
-                <route sink="Wired Headphone" type="mix"
+                <route type="mix" sink="Wired Headphone"
                        sources="primary-out,fast"/>
-                <route sink="Bt Sco All" type="mix"
+                <route sink="Dock Headset" type="mix"
                        sources="primary-out,fast"/>
-                <route sink="Aux Device Out" type="mix"
-                       sources="hdmi"/>
-
-                <route sink="primary-in" type="mix"
-                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,Bt Sco Headset Mic,Aux Device In,Voice Call Mic,FM Mic"/>
-
+                <route sink="Bt Sco" type="mix"
+                       sources="primary-out,fast"/>
+                <route sink="Bt Sco Headset" type="mix"
+                       sources="primary-out,fast"/>
+                <route sink="Bt Sco Car Kit" type="mix"
+                       sources="primary-out,fast"/>
+                <route type="mix" sink="primary-in"
+                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,Bt Sco Headset Mic,Voice Call Mic,FM Mic"/>
             </routes>
+
         </module>
 
         <!-- A2dp Audio HAL -->
         <xi:include href="a2dp_audio_policy_configuration.xml"/>
 
-        <!-- Usb Audio HAL -->
-        <xi:include href="usb_audio_policy_configuration.xml"/>
-
         <!-- Remote Submix Audio HAL -->
         <xi:include href="r_submix_audio_policy_configuration.xml"/>
 
+        <!-- Usb Audio HAL -->
+        <xi:include href="usb_audio_policy_configuration.xml"/>
+
     </modules>
+    <!-- End of Modules section -->
 
     <!-- Volume section -->
+
     <xi:include href="audio_policy_volumes.xml"/>
     <xi:include href="default_volume_tables.xml"/>
 
+    <!-- End of Volume section -->
+
 </audioPolicyConfiguration>
+