diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index c394391..31aa222 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2672,9 +2672,7 @@
 
     err = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_BT_NREC, value, sizeof(value));
     if (err >= 0) {
-        /* When set to false, HAL should disable EC and NS
-         * But it is currently not supported.
-         */
+        /* When set to false, HAL should disable EC and NS */
         if (strcmp(value, AUDIO_PARAMETER_VALUE_ON) == 0)
             adev->bluetooth_nrec = true;
         else
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 6cf0f65..9dc8fce 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -231,7 +231,9 @@
     [SND_DEVICE_IN_VOICE_HEADSET_MIC] = "voice-headset-mic",
     [SND_DEVICE_IN_HDMI_MIC] = "hdmi-mic",
     [SND_DEVICE_IN_BT_SCO_MIC] = "bt-sco-mic",
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = "bt-sco-mic",
     [SND_DEVICE_IN_BT_SCO_MIC_WB] = "bt-sco-mic-wb",
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = "bt-sco-mic-wb",
     [SND_DEVICE_IN_CAMCORDER_MIC] = "camcorder-mic",
     [SND_DEVICE_IN_VOICE_DMIC] = "voice-dmic-ef",
     [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = "voice-speaker-dmic-ef",
@@ -309,7 +311,9 @@
     [SND_DEVICE_IN_VOICE_HEADSET_MIC] = 8,
     [SND_DEVICE_IN_HDMI_MIC] = 4,
     [SND_DEVICE_IN_BT_SCO_MIC] = 21,
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = 122,
     [SND_DEVICE_IN_BT_SCO_MIC_WB] = 38,
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = 123,
     [SND_DEVICE_IN_CAMCORDER_MIC] = 4,
     [SND_DEVICE_IN_VOICE_DMIC] = 41,
     [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = 43,
@@ -392,7 +396,9 @@
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_HEADSET_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_HDMI_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_NREC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB_NREC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_CAMCORDER_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_DMIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_DMIC)},
@@ -819,9 +825,11 @@
 
 void platform_add_backend_name(char *mixer_path, snd_device_t snd_device)
 {
-    if (snd_device == SND_DEVICE_IN_BT_SCO_MIC)
+    if ((snd_device == SND_DEVICE_IN_BT_SCO_MIC) ||
+         (snd_device == SND_DEVICE_IN_BT_SCO_MIC_NREC))
         strlcat(mixer_path, " bt-sco", MIXER_PATH_MAX_LENGTH);
-    else if (snd_device == SND_DEVICE_IN_BT_SCO_MIC_WB)
+    else if ((snd_device == SND_DEVICE_IN_BT_SCO_MIC_WB) ||
+              (snd_device == SND_DEVICE_IN_BT_SCO_MIC_WB_NREC))
         strlcat(mixer_path, " bt-sco-wb", MIXER_PATH_MAX_LENGTH);
     else if(snd_device == SND_DEVICE_OUT_BT_SCO)
         strlcat(mixer_path, " bt-sco", MIXER_PATH_MAX_LENGTH);
@@ -1428,10 +1436,17 @@
             snd_device = SND_DEVICE_IN_VOICE_HEADSET_MIC;
             set_echo_reference(adev->mixer, EC_REF_RX);
         } else if (out_device & AUDIO_DEVICE_OUT_ALL_SCO) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (out_device & AUDIO_DEVICE_OUT_SPEAKER) {
             if (my_data->fluence_type != FLUENCE_NONE &&
                 my_data->fluence_in_voice_call &&
@@ -1580,10 +1595,17 @@
         } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
             snd_device = SND_DEVICE_IN_HEADSET_MIC;
         } else if (in_device & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (in_device & AUDIO_DEVICE_IN_AUX_DIGITAL) {
             snd_device = SND_DEVICE_IN_HDMI_MIC;
         } else if (in_device & AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET ||
@@ -1609,10 +1631,17 @@
         } else if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADPHONE) {
             snd_device = SND_DEVICE_IN_HANDSET_MIC;
         } else if (out_device & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (out_device & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
             snd_device = SND_DEVICE_IN_HDMI_MIC;
         } else if (out_device & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET ||
diff --git a/hal/msm8916/platform.h b/hal/msm8916/platform.h
index 3fc8fbf..dec9eda 100644
--- a/hal/msm8916/platform.h
+++ b/hal/msm8916/platform.h
@@ -107,7 +107,9 @@
     SND_DEVICE_IN_VOICE_HEADSET_MIC,
     SND_DEVICE_IN_HDMI_MIC,
     SND_DEVICE_IN_BT_SCO_MIC,
+    SND_DEVICE_IN_BT_SCO_MIC_NREC,
     SND_DEVICE_IN_BT_SCO_MIC_WB,
+    SND_DEVICE_IN_BT_SCO_MIC_WB_NREC,
     SND_DEVICE_IN_CAMCORDER_MIC,
     SND_DEVICE_IN_VOICE_DMIC,
     SND_DEVICE_IN_VOICE_SPEAKER_DMIC,
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 7def48d..a8035f4 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -264,7 +264,9 @@
     [SND_DEVICE_IN_VOICE_HEADSET_MIC] = "voice-headset-mic",
     [SND_DEVICE_IN_HDMI_MIC] = "hdmi-mic",
     [SND_DEVICE_IN_BT_SCO_MIC] = "bt-sco-mic",
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = "bt-sco-mic",
     [SND_DEVICE_IN_BT_SCO_MIC_WB] = "bt-sco-mic-wb",
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = "bt-sco-mic-wb",
     [SND_DEVICE_IN_CAMCORDER_MIC] = "camcorder-mic",
     [SND_DEVICE_IN_VOICE_DMIC] = "voice-dmic-ef",
     [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = "voice-speaker-dmic-ef",
@@ -347,7 +349,9 @@
     [SND_DEVICE_IN_VOICE_HEADSET_MIC] = 8,
     [SND_DEVICE_IN_HDMI_MIC] = 4,
     [SND_DEVICE_IN_BT_SCO_MIC] = 21,
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = 122,
     [SND_DEVICE_IN_BT_SCO_MIC_WB] = 38,
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = 123,
     [SND_DEVICE_IN_CAMCORDER_MIC] = 4,
     [SND_DEVICE_IN_VOICE_DMIC] = 41,
     [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = 43,
@@ -435,7 +439,9 @@
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_HEADSET_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_HDMI_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_NREC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB_NREC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_CAMCORDER_MIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_DMIC)},
     {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_DMIC)},
@@ -694,6 +700,8 @@
     // will help in avoiding strdups here
     backend_table[SND_DEVICE_IN_BT_SCO_MIC] = strdup("bt-sco");
     backend_table[SND_DEVICE_IN_BT_SCO_MIC_WB] = strdup("bt-sco-wb");
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC_NREC] = strdup("bt-sco");
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = strdup("bt-sco-wb");
     backend_table[SND_DEVICE_OUT_BT_SCO] = strdup("bt-sco");
     backend_table[SND_DEVICE_OUT_BT_SCO_WB] = strdup("bt-sco-wb");
     backend_table[SND_DEVICE_OUT_HDMI] = strdup("hdmi");
@@ -1609,10 +1617,17 @@
             snd_device = SND_DEVICE_IN_VOICE_HEADSET_MIC;
             set_echo_reference(adev, true);
         } else if (out_device & AUDIO_DEVICE_OUT_ALL_SCO) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (out_device & AUDIO_DEVICE_OUT_SPEAKER) {
             if (my_data->fluence_type != FLUENCE_NONE &&
                 my_data->fluence_in_voice_call &&
@@ -1760,10 +1775,17 @@
         } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
             snd_device = SND_DEVICE_IN_HEADSET_MIC;
         } else if (in_device & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (in_device & AUDIO_DEVICE_IN_AUX_DIGITAL) {
             snd_device = SND_DEVICE_IN_HDMI_MIC;
         } else if (in_device & AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET ||
@@ -1789,10 +1811,17 @@
         } else if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADPHONE) {
             snd_device = SND_DEVICE_IN_HANDSET_MIC;
         } else if (out_device & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET) {
-            if (adev->bt_wb_speech_enabled)
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
-            else
-                snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
         } else if (out_device & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
             snd_device = SND_DEVICE_IN_HDMI_MIC;
         } else if (out_device & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET ||
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index 19f37c7..6f430cc 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -112,7 +112,9 @@
     SND_DEVICE_IN_VOICE_HEADSET_MIC,
     SND_DEVICE_IN_HDMI_MIC,
     SND_DEVICE_IN_BT_SCO_MIC,
+    SND_DEVICE_IN_BT_SCO_MIC_NREC,
     SND_DEVICE_IN_BT_SCO_MIC_WB,
+    SND_DEVICE_IN_BT_SCO_MIC_WB_NREC,
     SND_DEVICE_IN_CAMCORDER_MIC,
     SND_DEVICE_IN_VOICE_DMIC,
     SND_DEVICE_IN_VOICE_SPEAKER_DMIC,