diff --git a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
index 30b9694..fa5ace6 100644
--- a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
+++ b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
@@ -790,7 +790,7 @@
 TEST_F(GraphicsComposerHidlCommandTest, PRESENT_DISPLAY_NO_LAYER_STATE_CHANGES) {
     mWriter->selectDisplay(mPrimaryDisplay);
     mComposerClient->setPowerMode(mPrimaryDisplay, IComposerClient::PowerMode::ON);
-    mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB);
+    mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::NATIVE);
 
     auto handle = allocate();
     ASSERT_NE(nullptr, handle);
diff --git a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
index 0648b34..02c4c9c 100644
--- a/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
+++ b/graphics/composer/2.2/vts/functional/VtsHalGraphicsComposerV2_2ReadbackTest.cpp
@@ -182,6 +182,14 @@
         mReader = std::make_unique<TestCommandReader>();
         mGralloc = std::make_shared<Gralloc>();
 
+        std::vector<ColorMode> colorModes = mComposerClient->getColorModes(mPrimaryDisplay);
+        if (std::find(colorModes.begin(), colorModes.end(), ColorMode::SRGB) == colorModes.end()) {
+            mHasReadbackBuffer = false;
+            return;
+        }
+        mWriter->selectDisplay(mPrimaryDisplay);
+        ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
+                                                              RenderIntent::COLORIMETRIC));
         mComposerClient->getRaw()->getReadbackBufferAttributes(
             mPrimaryDisplay,
             [&](const auto& tmpError, const auto& tmpPixelFormat, const auto& tmpDataspace) {
@@ -471,12 +479,12 @@
 
 TEST_F(GraphicsComposerReadbackTest, SingleSolidColorLayer) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
-    mWriter->selectDisplay(mPrimaryDisplay);
-    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
-                                                          RenderIntent::COLORIMETRIC));
 
     auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
     IComposerClient::Rect coloredSquare({0, 0, mDisplayWidth, mDisplayHeight});
@@ -515,12 +523,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerBuffer) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     ReadbackBuffer readbackBuffer(mPrimaryDisplay, mComposerClient, mGralloc, mDisplayWidth,
                                   mDisplayHeight, mPixelFormat, mDataspace);
     ASSERT_NO_FATAL_FAILURE(readbackBuffer.setReadbackBuffer());
@@ -562,13 +571,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerBufferNoEffect) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
-                                                          RenderIntent::COLORIMETRIC));
 
     auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
     IComposerClient::Rect coloredSquare({0, 0, mDisplayWidth, mDisplayHeight});
@@ -611,12 +620,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, ClientComposition) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
     fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 4}, RED);
     fillColorsArea(expectedColors, mDisplayWidth,
@@ -690,11 +700,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, DeviceAndClientComposition) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
     ASSERT_NO_FATAL_FAILURE(
         mComposerClient->setClientTargetSlotCount(mPrimaryDisplay, kClientTargetSlotCount));
 
@@ -776,12 +788,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerDamage) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelformat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     IComposerClient::Rect redRect = {0, 0, mDisplayWidth / 4, mDisplayHeight / 4};
 
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
@@ -842,14 +855,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerPlaneAlpha) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
-                                                          RenderIntent::COLORIMETRIC));
-
     auto layer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
     layer->setColor(RED);
     layer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
@@ -886,12 +898,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerSourceCrop) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
     fillColorsArea(expectedColors, mDisplayWidth, {0, 0, mDisplayWidth, mDisplayHeight / 4}, RED);
     fillColorsArea(expectedColors, mDisplayWidth,
@@ -931,14 +944,13 @@
 
 TEST_F(GraphicsComposerReadbackTest, SetLayerZOrder) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-    ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
-                                                          RenderIntent::COLORIMETRIC));
-
     IComposerClient::Rect redRect = {0, 0, mDisplayWidth, mDisplayHeight / 2};
     IComposerClient::Rect blueRect = {0, mDisplayHeight / 4, mDisplayWidth, mDisplayHeight};
     auto redLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
@@ -1081,12 +1093,13 @@
 
 TEST_P(GraphicsComposerBlendModeReadbackTest, None) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
 
     setBackgroundColor(BLACK);
@@ -1118,12 +1131,13 @@
 // alpha of .2, expected 10.2
 TEST_P(GraphicsComposerBlendModeReadbackTest, DISABLED_Coverage) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
 
     setBackgroundColor(BLACK);
@@ -1153,12 +1167,13 @@
 
 TEST_P(GraphicsComposerBlendModeReadbackTest, Premultiplied) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
 
-    mWriter->selectDisplay(mPrimaryDisplay);
-
     std::vector<IComposerClient::Color> expectedColors(mDisplayWidth * mDisplayHeight);
 
     setBackgroundColor(BLACK);
@@ -1193,10 +1208,6 @@
     void SetUp() override {
         GraphicsComposerReadbackTest::SetUp();
 
-        mWriter->selectDisplay(mPrimaryDisplay);
-        ASSERT_NO_FATAL_FAILURE(mComposerClient->setColorMode(mPrimaryDisplay, ColorMode::SRGB,
-                                                              RenderIntent::COLORIMETRIC));
-
         auto backgroundLayer = std::make_shared<TestColorLayer>(mComposerClient, mPrimaryDisplay);
         backgroundLayer->setColor({0, 0, 0, 0});
         backgroundLayer->setDisplayFrame({0, 0, mDisplayWidth, mDisplayHeight});
@@ -1230,6 +1241,9 @@
 
 TEST_F(GraphicsComposerTransformReadbackTest, FLIP_H) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
@@ -1262,6 +1276,9 @@
 
 TEST_F(GraphicsComposerTransformReadbackTest, FLIP_V) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
@@ -1295,6 +1312,9 @@
 
 TEST_F(GraphicsComposerTransformReadbackTest, ROT_180) {
     if (!mHasReadbackBuffer) {
+        std::cout << "Readback not supported or unsuppported pixelFormat/dataspace or SRGB not a "
+                     "valid color mode"
+                  << std::endl;
         GTEST_SUCCEED() << "Readback not supported or unsupported pixelFormat/dataspace";
         return;
     }
diff --git a/radio/1.2/vts/functional/Android.bp b/radio/1.2/vts/functional/Android.bp
index 6782f14..c5838a8 100644
--- a/radio/1.2/vts/functional/Android.bp
+++ b/radio/1.2/vts/functional/Android.bp
@@ -20,6 +20,7 @@
     srcs: [
         "radio_hidl_hal_api.cpp",
         "radio_hidl_hal_test.cpp",
+        "radio_config_response.cpp",
         "radio_response.cpp",
         "radio_indication.cpp",
         "VtsHalRadioV1_2TargetTest.cpp",
@@ -29,6 +30,8 @@
         "android.hardware.radio@1.2",
         "android.hardware.radio@1.1",
         "android.hardware.radio@1.0",
+        "android.hardware.radio.config@1.0",
+        "android.hardware.radio.config@1.1",
     ],
     header_libs: ["radio.util.header@1.0"],
     test_suites: ["general-tests"],
diff --git a/radio/1.2/vts/functional/radio_config_response.cpp b/radio/1.2/vts/functional/radio_config_response.cpp
new file mode 100644
index 0000000..71b7497
--- /dev/null
+++ b/radio/1.2/vts/functional/radio_config_response.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <radio_hidl_hal_utils_v1_2.h>
+
+RadioConfigResponse::RadioConfigResponse(RadioHidlTest_v1_2& parent) : parent_v1_2(parent) {}
+
+Return<void> RadioConfigResponse::getSimSlotsStatusResponse(
+        const RadioResponseInfo& info,
+        const ::android::hardware::hidl_vec<SimSlotStatus>& slotStatus) {
+    rspInfo = info;
+    simSlotStatus = slotStatus;
+    parent_v1_2.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioConfigResponse::setSimSlotsMappingResponse(const RadioResponseInfo& /* info */) {
+    return Void();
+}
+
+Return<void> RadioConfigResponse::getPhoneCapabilityResponse(
+        const RadioResponseInfo& info, const PhoneCapability& phoneCapability) {
+    rspInfo = info;
+    phoneCap = phoneCapability;
+    parent_v1_2.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioConfigResponse::setPreferredDataModemResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_2.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioConfigResponse::getModemsConfigResponse(const RadioResponseInfo& info,
+                                                          const ModemsConfig& /* mConfig */) {
+    rspInfo = info;
+    parent_v1_2.notify(info.serial);
+    return Void();
+}
+
+Return<void> RadioConfigResponse::setModemsConfigResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_v1_2.notify(info.serial);
+    return Void();
+}
diff --git a/radio/1.2/vts/functional/radio_hidl_hal_api.cpp b/radio/1.2/vts/functional/radio_hidl_hal_api.cpp
index f11f0d8..5184ef9 100644
--- a/radio/1.2/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.2/vts/functional/radio_hidl_hal_api.cpp
@@ -34,6 +34,15 @@
 TEST_F(RadioHidlTest_v1_2, startNetworkScan) {
     serial = GetRandomSerialNumber();
 
+    if (radioConfig != NULL && DDS_LOGICAL_SLOT_INDEX != logicalSlotId) {
+        // Some DSDS devices have a limitation that network scans can only be performed on the
+        // logical modem that currently used for packet data. For now, skip the test on the
+        // non-data SIM. This exemption is removed in HAL version 1.4. See b/135243177 for
+        // additional information.
+        ALOGI("Skip network scan on non-dds SIM, slot id = %d", logicalSlotId);
+        return;
+    }
+
     ::android::hardware::radio::V1_2::NetworkScanRequest request = {
             .type = ScanType::ONE_SHOT,
             .interval = 60,
diff --git a/radio/1.2/vts/functional/radio_hidl_hal_test.cpp b/radio/1.2/vts/functional/radio_hidl_hal_test.cpp
index bff7481..835d9b8 100644
--- a/radio/1.2/vts/functional/radio_hidl_hal_test.cpp
+++ b/radio/1.2/vts/functional/radio_hidl_hal_test.cpp
@@ -37,6 +37,7 @@
     ASSERT_NE(nullptr, radioRsp_v1_2.get());
 
     count_ = 0;
+    logicalSlotId = -1;
 
     radioInd_v1_2 = new (std::nothrow) RadioIndication_v1_2(*this);
     ASSERT_NE(nullptr, radioInd_v1_2.get());
@@ -50,6 +51,71 @@
 
     /* Enforce Vts Testing with Sim Status Present only. */
     EXPECT_EQ(CardState::PRESENT, cardStatus.base.cardState);
+
+    radioConfig = ::testing::VtsHalHidlTargetTestBase::getService<
+            ::android::hardware::radio::config::V1_1::IRadioConfig>();
+
+    /* Enforce Vts tesing with RadioConfig for network scan excemption. */
+    // Some devices can only perform network scan on logical modem that currently used for packet
+    // data. This exemption is removed in HAL version 1.4. See b/135243177 for additional info.
+    if (radioConfig != NULL) {
+        // RadioConfig 1.1 available, some devices fall in excepmtion category.
+        ASSERT_NE(nullptr, radioConfig.get());
+
+        radioConfigRsp = new (std::nothrow) RadioConfigResponse(*this);
+        ASSERT_NE(nullptr, radioConfigRsp.get());
+
+        /* Set radio config response functions */
+        radioConfig->setResponseFunctions(radioConfigRsp, nullptr);
+
+        /* set preferred data modem */
+        setPreferredDataModem();
+
+        /* get current logical sim id */
+        getLogicalSimId();
+    }
+}
+
+void RadioHidlTest_v1_2::getLogicalSimId() {
+    serial = GetRandomSerialNumber();
+    radioConfig->getSimSlotsStatus(serial);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioConfigRsp->rspInfo.type);
+    EXPECT_EQ(serial, radioConfigRsp->rspInfo.serial);
+
+    ASSERT_TRUE(CheckAnyOfErrors(radioConfigRsp->rspInfo.error,
+                                 {RadioError::NONE, RadioError::REQUEST_NOT_SUPPORTED}));
+
+    if (radioConfigRsp->rspInfo.error != RadioError ::NONE) {
+        ALOGI("Failed to get sim slot status, rspInfo.error = %s\n",
+              toString(radioConfigRsp->rspInfo.error).c_str());
+        return;
+    }
+
+    if (cardStatus.physicalSlotId < 0 ||
+        cardStatus.physicalSlotId >= radioConfigRsp->simSlotStatus.size()) {
+        ALOGI("Physical slot id: %d is out of range", cardStatus.physicalSlotId);
+        return;
+    }
+
+    logicalSlotId = radioConfigRsp->simSlotStatus[cardStatus.physicalSlotId].logicalSlotId;
+}
+
+/*
+ * Set preferred data modem
+ */
+void RadioHidlTest_v1_2::setPreferredDataModem() {
+    serial = GetRandomSerialNumber();
+    // Even for single sim device, the setPreferredDataModem should still success. Enforce dds on
+    // first logical modem.
+    radioConfig->setPreferredDataModem(serial, DDS_LOGICAL_SLOT_INDEX);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioConfigRsp->rspInfo.type);
+    EXPECT_EQ(serial, radioConfigRsp->rspInfo.serial);
+
+    ASSERT_TRUE(CheckAnyOfErrors(
+            radioConfigRsp->rspInfo.error,
+            {RadioError::NONE, RadioError::RADIO_NOT_AVAILABLE, RadioError::INTERNAL_ERR}));
 }
 
 /*
diff --git a/radio/1.2/vts/functional/radio_hidl_hal_utils_v1_2.h b/radio/1.2/vts/functional/radio_hidl_hal_utils_v1_2.h
index 3f780e5..2db1cac 100644
--- a/radio/1.2/vts/functional/radio_hidl_hal_utils_v1_2.h
+++ b/radio/1.2/vts/functional/radio_hidl_hal_utils_v1_2.h
@@ -22,6 +22,10 @@
 #include <condition_variable>
 #include <mutex>
 
+#include <android/hardware/radio/config/1.1/IRadioConfig.h>
+#include <android/hardware/radio/config/1.1/IRadioConfigResponse.h>
+#include <android/hardware/radio/config/1.1/types.h>
+
 #include <android/hardware/radio/1.2/IRadio.h>
 #include <android/hardware/radio/1.2/IRadioIndication.h>
 #include <android/hardware/radio/1.2/IRadioResponse.h>
@@ -32,13 +36,17 @@
 using namespace ::android::hardware::radio::V1_2;
 using namespace ::android::hardware::radio::V1_1;
 using namespace ::android::hardware::radio::V1_0;
+using namespace ::android::hardware::radio::config::V1_1;
 
+using ::android::sp;
 using ::android::hardware::hidl_bitfield;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
-using ::android::sp;
+using ::android::hardware::radio::config::V1_0::SimSlotStatus;
+using ::android::hardware::radio::V1_0::RadioResponseInfo;
+using ::android::hardware::radio::V1_0::RadioResponseType;
 
 #define TIMEOUT_PERIOD 75
 #define RADIO_SERVICE_NAME "slot1"
@@ -46,6 +54,36 @@
 class RadioHidlTest_v1_2;
 extern ::android::hardware::radio::V1_2::CardStatus cardStatus;
 
+/* Callback class for radio config response */
+class RadioConfigResponse : public IRadioConfigResponse {
+  protected:
+    RadioHidlTest_v1_2& parent_v1_2;
+
+  public:
+    RadioResponseInfo rspInfo;
+    PhoneCapability phoneCap;
+    hidl_vec<SimSlotStatus> simSlotStatus;
+
+    RadioConfigResponse(RadioHidlTest_v1_2& parent_v1_2);
+    virtual ~RadioConfigResponse() = default;
+
+    Return<void> getSimSlotsStatusResponse(
+            const RadioResponseInfo& info,
+            const ::android::hardware::hidl_vec<SimSlotStatus>& slotStatus);
+
+    Return<void> setSimSlotsMappingResponse(const RadioResponseInfo& info);
+
+    Return<void> getPhoneCapabilityResponse(const RadioResponseInfo& info,
+                                            const PhoneCapability& phoneCapability);
+
+    Return<void> setPreferredDataModemResponse(const RadioResponseInfo& info);
+
+    Return<void> getModemsConfigResponse(const RadioResponseInfo& info,
+                                         const ModemsConfig& mConfig);
+
+    Return<void> setModemsConfigResponse(const RadioResponseInfo& info);
+};
+
 /* Callback class for radio response v1_2*/
 class RadioResponse_v1_2 : public ::android::hardware::radio::V1_2::IRadioResponse {
    protected:
@@ -616,15 +654,27 @@
     std::condition_variable cv_;
     int count_;
 
+    /* Preferred data sim id */
+    const int DDS_LOGICAL_SLOT_INDEX = 0;
+
     /* Serial number for radio request */
     int serial;
 
+    /* Current logical slot id */
+    int logicalSlotId;
+
     /* Update Sim Card Status */
     void updateSimCardStatus();
 
     /* Stop Network Scan Command */
     void stopNetworkScan();
 
+    /* Set preferred data modem */
+    void setPreferredDataModem();
+
+    /* get current logical sim id */
+    void getLogicalSimId();
+
   public:
     virtual void SetUp() override;
 
@@ -642,4 +692,10 @@
 
     /* radio indication handle */
     sp<RadioIndication_v1_2> radioInd_v1_2;
+
+    /* radio config response handle */
+    sp<RadioConfigResponse> radioConfigRsp;
+
+    /* radio config service handle */
+    sp<IRadioConfig> radioConfig;
 };
\ No newline at end of file