diff --git a/gnss/2.1/vts/functional/Android.bp b/gnss/2.1/vts/functional/Android.bp
index 175bc75..aae3571 100644
--- a/gnss/2.1/vts/functional/Android.bp
+++ b/gnss/2.1/vts/functional/Android.bp
@@ -18,6 +18,7 @@
     name: "VtsHalGnssV2_1TargetTest",
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: [
+        "gnss_hal_test.cpp",
         "gnss_hal_test_cases.cpp",
         "VtsHalGnssV2_1TargetTest.cpp",
     ],
@@ -31,6 +32,9 @@
         "android.hardware.gnss@2.1",
         "android.hardware.gnss@common-vts-lib",
     ],
+    shared_libs: [
+        "libvintf",
+    ],
     test_suites: [
         "general-tests",
         "vts",
diff --git a/gnss/2.1/vts/functional/gnss_hal_test.cpp b/gnss/2.1/vts/functional/gnss_hal_test.cpp
new file mode 100644
index 0000000..1154260
--- /dev/null
+++ b/gnss/2.1/vts/functional/gnss_hal_test.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#define LOG_TAG "GnssHalTest"
+
+#include <android/hidl/manager/1.2/IServiceManager.h>
+#include <hidl/ServiceManagement.h>
+#include <log/log.h>
+#include <vintf/VintfObject.h>
+
+#include "gnss_hal_test.h"
+
+using ::android::hardware::hidl_string;
+using ::android::hidl::manager::V1_2::IServiceManager;
+
+bool GnssHalTest::IsGnssHalVersion_2_1() const {
+    sp<IServiceManager> manager = ::android::hardware::defaultServiceManager1_2();
+    bool hasGnssHalVersion_2_1 = false;
+    manager->listManifestByInterface(
+            "android.hardware.gnss@2.1::IGnss",
+            [&hasGnssHalVersion_2_1](const hidl_vec<hidl_string>& registered) {
+                hasGnssHalVersion_2_1 = registered.size() > 0;
+            });
+
+    auto deviceManifest = ::android::vintf::VintfObject::GetDeviceHalManifest();
+    bool hasGnssAidl =
+            deviceManifest->getAidlInstances("android.hardware.gnss", "IGnss").size() > 0;
+
+    return hasGnssHalVersion_2_1 && !hasGnssAidl;
+}
\ No newline at end of file
diff --git a/gnss/2.1/vts/functional/gnss_hal_test.h b/gnss/2.1/vts/functional/gnss_hal_test.h
index c28e248..7950670 100644
--- a/gnss/2.1/vts/functional/gnss_hal_test.h
+++ b/gnss/2.1/vts/functional/gnss_hal_test.h
@@ -22,4 +22,11 @@
 using android::hardware::gnss::V2_1::IGnss;
 
 // The main test class for GNSS HAL.
-class GnssHalTest : public GnssHalTestTemplate<IGnss> {};
+class GnssHalTest : public GnssHalTestTemplate<IGnss> {
+  public:
+    /**
+     * IsGnssHalVersion_2_1:
+     * returns  true if the GNSS HAL version is exactly 2.1.
+     */
+    bool IsGnssHalVersion_2_1() const;
+};
diff --git a/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp b/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
index 2902809..7afd49c 100644
--- a/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
+++ b/gnss/2.1/vts/functional/gnss_hal_test_cases.cpp
@@ -87,6 +87,10 @@
  * Gets the GnssConfigurationExtension and verifies that it returns an actual extension.
  */
 TEST_P(GnssHalTest, TestGnssConfigurationExtension) {
+    if (!IsGnssHalVersion_2_1()) {
+        ALOGI("Test TestGnssConfigurationExtension skipped. GNSS HAL version is greater than 2.1.");
+        return;
+    }
     auto gnssConfiguration_2_1 = gnss_hal_->getExtensionGnssConfiguration_2_1();
     auto gnssConfiguration_2_0 = gnss_hal_->getExtensionGnssConfiguration_2_0();
     auto gnssConfiguration_1_1 = gnss_hal_->getExtensionGnssConfiguration_1_1();
@@ -358,20 +362,24 @@
 }
 
 /*
- * BlacklistIndividualSatellites:
+ * BlocklistIndividualSatellites:
  *
  * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus for common satellites (strongest and one other.)
- * 2a & b) Turns off location, and blacklists common satellites.
+ * 2a & b) Turns off location, and blocklists common satellites.
  * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus does not use those satellites.
- * 4a & b) Turns off location, and send in empty blacklist.
+ * 4a & b) Turns off location, and send in empty blocklist.
  * 5a) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus does re-use at least the previously strongest satellite
  * 5b) Retry a few times, in case GNSS search strategy takes a while to reacquire even the
  * formerly strongest satellite
  */
-TEST_P(GnssHalTest, BlacklistIndividualSatellites) {
+TEST_P(GnssHalTest, BlocklistIndividualSatellites) {
+    if (!IsGnssHalVersion_2_1()) {
+        ALOGI("Test BlocklistIndividualSatellites skipped. GNSS HAL version is greater than 2.1.");
+        return;
+    }
     if (!(gnss_cb_->last_capabilities_ & IGnssCallback_2_1::Capabilities::SATELLITE_BLACKLIST)) {
         ALOGI("Test BlacklistIndividualSatellites skipped. SATELLITE_BLACKLIST capability not "
               "supported.");
@@ -509,16 +517,21 @@
 }
 
 /*
- * BlacklistConstellationLocationOff:
+ * BlocklistConstellationLocationOff:
  *
  * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus for any non-GPS constellations.
- * 2a & b) Turns off location, and blacklist first non-GPS constellations.
+ * 2a & b) Turns off location, and blocklist first non-GPS constellations.
  * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus does not use any constellation but GPS.
- * 4a & b) Clean up by turning off location, and send in empty blacklist.
+ * 4a & b) Clean up by turning off location, and send in empty blocklist.
  */
-TEST_P(GnssHalTest, BlacklistConstellationLocationOff) {
+TEST_P(GnssHalTest, BlocklistConstellationLocationOff) {
+    if (!IsGnssHalVersion_2_1()) {
+        ALOGI("Test BlocklistConstellationLocationOff skipped. GNSS HAL version is greater than "
+              "2.1.");
+        return;
+    }
     if (!(gnss_cb_->last_capabilities_ & IGnssCallback_2_1::Capabilities::SATELLITE_BLACKLIST)) {
         ALOGI("Test BlacklistConstellationLocationOff skipped. SATELLITE_BLACKLIST capability not "
               "supported.");
@@ -591,16 +604,21 @@
 }
 
 /*
- * BlacklistConstellationLocationOn:
+ * BlocklistConstellationLocationOn:
  *
  * 1) Turns on location, waits for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus for any non-GPS constellations.
- * 2a & b) Blacklist first non-GPS constellation, and turn off location.
+ * 2a & b) Blocklist first non-GPS constellation, and turn off location.
  * 3) Restart location, wait for 3 locations, ensuring they are valid, and checks corresponding
  * GnssStatus does not use any constellation but GPS.
- * 4a & b) Clean up by turning off location, and send in empty blacklist.
+ * 4a & b) Clean up by turning off location, and send in empty blocklist.
  */
-TEST_P(GnssHalTest, BlacklistConstellationLocationOn) {
+TEST_P(GnssHalTest, BlocklistConstellationLocationOn) {
+    if (!IsGnssHalVersion_2_1()) {
+        ALOGI("Test BlocklistConstellationLocationOn skipped. GNSS HAL version is greater than "
+              "2.1.");
+        return;
+    }
     if (!(gnss_cb_->last_capabilities_ & IGnssCallback_2_1::Capabilities::SATELLITE_BLACKLIST)) {
         ALOGI("Test BlacklistConstellationLocationOn skipped. SATELLITE_BLACKLIST capability not "
               "supported.");
diff --git a/gnss/aidl/TEST_MAPPING b/gnss/aidl/TEST_MAPPING
new file mode 100644
index 0000000..c21c3e4
--- /dev/null
+++ b/gnss/aidl/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "VtsHalGnssTargetTest"
+    }
+  ]
+}
diff --git a/gnss/aidl/vts/gnss_hal_test_cases.cpp b/gnss/aidl/vts/gnss_hal_test_cases.cpp
index 2b8a447..d621053 100644
--- a/gnss/aidl/vts/gnss_hal_test_cases.cpp
+++ b/gnss/aidl/vts/gnss_hal_test_cases.cpp
@@ -46,7 +46,7 @@
     ASSERT_TRUE(iGnssPsds != nullptr);
 
     status = iGnssPsds->injectPsdsData(PsdsType::LONG_TERM, std::vector<uint8_t>());
-    ASSERT_TRUE(status.isOk());
+    ASSERT_FALSE(status.isOk());
 }
 
 /*
diff --git a/power/stats/aidl/aidl_api/android.hardware.power.stats/current/android/hardware/power/stats/EnergyMeasurement.aidl b/power/stats/aidl/aidl_api/android.hardware.power.stats/current/android/hardware/power/stats/EnergyMeasurement.aidl
index 341909e..4d56ccf 100644
--- a/power/stats/aidl/aidl_api/android.hardware.power.stats/current/android/hardware/power/stats/EnergyMeasurement.aidl
+++ b/power/stats/aidl/aidl_api/android.hardware.power.stats/current/android/hardware/power/stats/EnergyMeasurement.aidl
@@ -20,5 +20,6 @@
 parcelable EnergyMeasurement {
   int channelId;
   long timestampMs;
+  long durationMs;
   long energyUWs;
 }
diff --git a/power/stats/aidl/android/hardware/power/stats/EnergyMeasurement.aidl b/power/stats/aidl/android/hardware/power/stats/EnergyMeasurement.aidl
index f873849..d81914d 100644
--- a/power/stats/aidl/android/hardware/power/stats/EnergyMeasurement.aidl
+++ b/power/stats/aidl/android/hardware/power/stats/EnergyMeasurement.aidl
@@ -23,11 +23,15 @@
      */
     int channelId;
     /**
-     * Time since boot in milliseconds
+     * Approximate time of data capture in millseconds since boot
      */
     long timestampMs;
     /**
-     * Accumulated energy since boot in microwatt-seconds (uWs)
+     * Duration in milliseconds that energy has been accumulated
+     */
+    long durationMs;
+    /**
+     * Accumulated energy in microwatt-seconds (uWs)
      */
     long energyUWs;
 }
diff --git a/power/stats/aidl/android/hardware/power/stats/IPowerStats.aidl b/power/stats/aidl/android/hardware/power/stats/IPowerStats.aidl
index 85a2ce0..05e2004 100644
--- a/power/stats/aidl/android/hardware/power/stats/IPowerStats.aidl
+++ b/power/stats/aidl/android/hardware/power/stats/IPowerStats.aidl
@@ -96,7 +96,7 @@
     ChannelInfo[] getEnergyMeterInfo();
 
     /**
-     * Reports accumulated energy since boot for each specified channel.
+     * Reports accumulated energy for each specified channel.
      *
      * @param channelIds IDs of channels for which data is requested.
      *     Passing an empty list will return energy measurements for all available channels.
diff --git a/sensors/common/default/2.X/Sensor.cpp b/sensors/common/default/2.X/Sensor.cpp
index 1841dff..870980f 100644
--- a/sensors/common/default/2.X/Sensor.cpp
+++ b/sensors/common/default/2.X/Sensor.cpp
@@ -57,11 +57,11 @@
     return mSensorInfo;
 }
 
-void Sensor::batch(int32_t samplingPeriodNs) {
-    if (samplingPeriodNs < mSensorInfo.minDelay * 1000) {
-        samplingPeriodNs = mSensorInfo.minDelay * 1000;
-    } else if (samplingPeriodNs > mSensorInfo.maxDelay * 1000) {
-        samplingPeriodNs = mSensorInfo.maxDelay * 1000;
+void Sensor::batch(int64_t samplingPeriodNs) {
+    if (samplingPeriodNs < mSensorInfo.minDelay * 1000ll) {
+        samplingPeriodNs = mSensorInfo.minDelay * 1000ll;
+    } else if (samplingPeriodNs > mSensorInfo.maxDelay * 1000ll) {
+        samplingPeriodNs = mSensorInfo.maxDelay * 1000ll;
     }
 
     if (mSamplingPeriodNs != samplingPeriodNs) {
@@ -133,6 +133,11 @@
 }
 
 std::vector<Event> Sensor::readEvents() {
+    // For an accelerometer sensor type, default the z-direction
+    // value to -9.8
+    float zValue = (mSensorInfo.type == SensorType::ACCELEROMETER)
+        ? -9.8 : 0.0;
+
     std::vector<Event> events;
     Event event;
     event.sensorHandle = mSensorInfo.sensorHandle;
@@ -140,7 +145,7 @@
     event.timestamp = ::android::elapsedRealtimeNano();
     event.u.vec3.x = 0;
     event.u.vec3.y = 0;
-    event.u.vec3.z = 0;
+    event.u.vec3.z = zValue;
     event.u.vec3.status = SensorStatus::ACCURACY_HIGH;
     events.push_back(event);
     return events;
@@ -330,25 +335,6 @@
     mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
 };
 
-DeviceTempSensor::DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
-    : OnChangeSensor(callback) {
-    mSensorInfo.sensorHandle = sensorHandle;
-    mSensorInfo.name = "Device Temp Sensor";
-    mSensorInfo.vendor = "Vendor String";
-    mSensorInfo.version = 1;
-    mSensorInfo.type = SensorType::TEMPERATURE;
-    mSensorInfo.typeAsString = "";
-    mSensorInfo.maxRange = 80.0f;
-    mSensorInfo.resolution = 0.01f;
-    mSensorInfo.power = 0.001f;
-    mSensorInfo.minDelay = 40 * 1000;  // microseconds
-    mSensorInfo.maxDelay = kDefaultMaxDelayUs;
-    mSensorInfo.fifoReservedEventCount = 0;
-    mSensorInfo.fifoMaxEventCount = 0;
-    mSensorInfo.requiredPermission = "";
-    mSensorInfo.flags = static_cast<uint32_t>(SensorFlagBits::ON_CHANGE_MODE);
-}
-
 RelativeHumiditySensor::RelativeHumiditySensor(int32_t sensorHandle,
                                                ISensorsEventCallback* callback)
     : OnChangeSensor(callback) {
diff --git a/sensors/common/default/2.X/Sensor.h b/sensors/common/default/2.X/Sensor.h
index 2f8a143..a792797 100644
--- a/sensors/common/default/2.X/Sensor.h
+++ b/sensors/common/default/2.X/Sensor.h
@@ -32,7 +32,7 @@
 namespace V2_X {
 namespace implementation {
 
-static constexpr float kDefaultMaxDelayUs = 10 * 1000 * 1000;
+static constexpr int32_t kDefaultMaxDelayUs = 10 * 1000 * 1000;
 
 class ISensorsEventCallback {
   public:
@@ -54,7 +54,7 @@
     virtual ~Sensor();
 
     const SensorInfo& getSensorInfo() const;
-    void batch(int32_t samplingPeriodNs);
+    void batch(int64_t samplingPeriodNs);
     virtual void activate(bool enable);
     Result flush();
 
@@ -113,11 +113,6 @@
     AmbientTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
 };
 
-class DeviceTempSensor : public OnChangeSensor {
-  public:
-    DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
-};
-
 class PressureSensor : public Sensor {
   public:
     PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
diff --git a/sensors/common/default/2.X/Sensors.h b/sensors/common/default/2.X/Sensors.h
index ee8240d..8969c0f 100644
--- a/sensors/common/default/2.X/Sensors.h
+++ b/sensors/common/default/2.X/Sensors.h
@@ -64,7 +64,6 @@
         AddSensor<AccelSensor>();
         AddSensor<GyroSensor>();
         AddSensor<AmbientTempSensor>();
-        AddSensor<DeviceTempSensor>();
         AddSensor<PressureSensor>();
         AddSensor<MagnetometerSensor>();
         AddSensor<LightSensor>();
diff --git a/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.cpp b/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.cpp
index 1efd971..69debb6 100644
--- a/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.cpp
+++ b/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.cpp
@@ -71,9 +71,10 @@
     return mSensorInfo;
 }
 
-void Sensor::batch(int32_t samplingPeriodNs) {
-    samplingPeriodNs =
-            std::clamp(samplingPeriodNs, mSensorInfo.minDelay * 1000, mSensorInfo.maxDelay * 1000);
+void Sensor::batch(int64_t samplingPeriodNs) {
+    samplingPeriodNs = std::clamp(samplingPeriodNs,
+                                  static_cast<int64_t>(mSensorInfo.minDelay) * 1000,
+                                  static_cast<int64_t>(mSensorInfo.maxDelay) * 1000);
 
     if (mSamplingPeriodNs != samplingPeriodNs) {
         mSamplingPeriodNs = samplingPeriodNs;
@@ -323,17 +324,6 @@
     mSensorInfo.minDelay = 40 * 1000;  // microseconds
 }
 
-DeviceTempSensor::DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
-    : ContinuousSensor(sensorHandle, callback) {
-    mSensorInfo.name = "Device Temp Sensor";
-    mSensorInfo.type = SensorType::TEMPERATURE;
-    mSensorInfo.typeAsString = SENSOR_STRING_TYPE_TEMPERATURE;
-    mSensorInfo.maxRange = 80.0f;
-    mSensorInfo.resolution = 0.01f;
-    mSensorInfo.power = 0.001f;
-    mSensorInfo.minDelay = 40 * 1000;  // microseconds
-}
-
 RelativeHumiditySensor::RelativeHumiditySensor(int32_t sensorHandle,
                                                ISensorsEventCallback* callback)
     : OnChangeSensor(sensorHandle, callback) {
diff --git a/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.h b/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.h
index 5cf9f83..08c8647 100644
--- a/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.h
+++ b/sensors/common/default/2.X/multihal/tests/fake_subhal/Sensor.h
@@ -49,7 +49,7 @@
     virtual ~Sensor();
 
     const SensorInfo& getSensorInfo() const;
-    void batch(int32_t samplingPeriodNs);
+    void batch(int64_t samplingPeriodNs);
     virtual void activate(bool enable);
     Result flush();
 
@@ -114,11 +114,6 @@
     std::vector<Event> readEvents() override;
 };
 
-class DeviceTempSensor : public ContinuousSensor {
-  public:
-    DeviceTempSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
-};
-
 class PressureSensor : public ContinuousSensor {
   public:
     PressureSensor(int32_t sensorHandle, ISensorsEventCallback* callback);
diff --git a/sensors/common/default/2.X/multihal/tests/fake_subhal/SensorsSubHal.h b/sensors/common/default/2.X/multihal/tests/fake_subhal/SensorsSubHal.h
index 1a78e84..353563c 100644
--- a/sensors/common/default/2.X/multihal/tests/fake_subhal/SensorsSubHal.h
+++ b/sensors/common/default/2.X/multihal/tests/fake_subhal/SensorsSubHal.h
@@ -206,7 +206,6 @@
         ISensorsSubHalBase::AddSensor<GyroSensor>();
         ISensorsSubHalBase::AddSensor<MagnetometerSensor>();
         ISensorsSubHalBase::AddSensor<PressureSensor>();
-        ISensorsSubHalBase::AddSensor<DeviceTempSensor>();
     }
 };
 
@@ -231,7 +230,6 @@
         ISensorsSubHalBase::AddSensor<GyroSensor>();
         ISensorsSubHalBase::AddSensor<MagnetometerSensor>();
         ISensorsSubHalBase::AddSensor<PressureSensor>();
-        ISensorsSubHalBase::AddSensor<DeviceTempSensor>();
         ISensorsSubHalBase::AddSensor<AmbientTempSensor>();
         ISensorsSubHalBase::AddSensor<LightSensor>();
         ISensorsSubHalBase::AddSensor<ProximitySensor>();
diff --git a/sensors/common/vts/2_X/VtsHalSensorsV2_XTargetTest.h b/sensors/common/vts/2_X/VtsHalSensorsV2_XTargetTest.h
index e674ddb..f857827 100644
--- a/sensors/common/vts/2_X/VtsHalSensorsV2_XTargetTest.h
+++ b/sensors/common/vts/2_X/VtsHalSensorsV2_XTargetTest.h
@@ -845,7 +845,11 @@
         std::shared_ptr<SensorsTestSharedMemory<SensorTypeVersion, EventType>> mem,
         int32_t* directChannelHandle, bool supportsSharedMemType, bool supportsAnyDirectChannel) {
     char* buffer = mem->getBuffer();
-    memset(buffer, 0xff, mem->getSize());
+    size_t size = mem->getSize();
+
+    if (supportsSharedMemType) {
+        memset(buffer, 0xff, size);
+    }
 
     registerDirectChannel(mem->getSharedMemInfo(), [&](Result result, int32_t channelHandle) {
         if (supportsSharedMemType) {
diff --git a/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h
index 03bec87..a8e1996 100644
--- a/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h
+++ b/sensors/common/vts/utils/include/sensors-vts-utils/SensorsHidlTestBase.h
@@ -109,7 +109,6 @@
         case SensorTypeT::MAGNETIC_FIELD:
         case SensorTypeT::ORIENTATION:
         case SensorTypeT::PRESSURE:
-        case SensorTypeT::TEMPERATURE:
         case SensorTypeT::GRAVITY:
         case SensorTypeT::LINEAR_ACCELERATION:
         case SensorTypeT::ROTATION_VECTOR:
@@ -145,6 +144,10 @@
         case SensorTypeT::DYNAMIC_SENSOR_META:
             return SensorFlagBits::SPECIAL_REPORTING_MODE;
 
+        case SensorTypeT::TEMPERATURE:
+            ALOGW("Device temperature sensor is deprecated, ignoring for test");
+            return (SensorFlagBits)-1;
+
         default:
             ALOGW("Type %d is not implemented in expectedReportModeForType", (int)type);
             return (SensorFlagBits)-1;
@@ -334,7 +337,7 @@
         usleep(500000);  // sleep 0.5 sec to wait for change rate to happen
         events1 = collectEvents(collectionTimeoutUs, minNEvent, getEnvironment());
 
-        // second collection, without stop sensor
+        // second collection, without stopping the sensor
         ASSERT_EQ(batch(handle, secondCollectionPeriod, batchingPeriodInNs), Result::OK);
 
         usleep(500000);  // sleep 0.5 sec to wait for change rate to happen
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 6b85e00..1c3141e 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -22,6 +22,7 @@
 #include <VtsCoreUtil.h>
 #include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.1/ISupplicantStaIface.h>
 
 #include "supplicant_hidl_call_util.h"
 #include "supplicant_hidl_test_utils.h"
@@ -73,11 +74,16 @@
         sta_iface_ = getSupplicantStaIface(supplicant_);
         ASSERT_NE(sta_iface_.get(), nullptr);
 
+        v1_1 = ::android::hardware::wifi::supplicant::V1_1::
+            ISupplicantStaIface::castFrom(sta_iface_);
+
         memcpy(mac_addr_.data(), kTestMacAddr, mac_addr_.size());
     }
 
    protected:
     bool isP2pOn_ = false;
+    sp<::android::hardware::wifi::supplicant::V1_1::ISupplicantStaIface> v1_1 =
+        nullptr;
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
     // MAC address to use for various tests.
@@ -175,10 +181,13 @@
  * RegisterCallback
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback) {
-    sta_iface_->registerCallback(
-        new IfaceCallback(), [](const SupplicantStatus& status) {
-            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
-        });
+    SupplicantStatusCode expectedCode =
+        (nullptr != v1_1) ? SupplicantStatusCode::FAILURE_UNKNOWN
+                          : SupplicantStatusCode::SUCCESS;
+    sta_iface_->registerCallback(new IfaceCallback(),
+                                 [&](const SupplicantStatus& status) {
+                                     EXPECT_EQ(expectedCode, status.code);
+                                 });
 }
 
 /*
diff --git a/wifi/supplicant/1.1/vts/functional/Android.bp b/wifi/supplicant/1.1/vts/functional/Android.bp
index 44b020e..ee80628 100644
--- a/wifi/supplicant/1.1/vts/functional/Android.bp
+++ b/wifi/supplicant/1.1/vts/functional/Android.bp
@@ -47,6 +47,7 @@
         "VtsHalWifiSupplicantV1_1TargetTestUtil",
         "android.hardware.wifi.supplicant@1.0",
         "android.hardware.wifi.supplicant@1.1",
+        "android.hardware.wifi.supplicant@1.2",
         "android.hardware.wifi@1.0",
         "android.hardware.wifi@1.1",
         "libgmock",
diff --git a/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
index db6323c..418def2 100644
--- a/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -20,6 +20,7 @@
 #include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/1.1/IWifi.h>
 #include <android/hardware/wifi/supplicant/1.1/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaIface.h>
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
@@ -45,11 +46,16 @@
         SupplicantHidlTestBaseV1_1::SetUp();
         sta_iface_ = getSupplicantStaIface_1_1(supplicant_);
         ASSERT_NE(sta_iface_.get(), nullptr);
+
+        v1_2 = ::android::hardware::wifi::supplicant::V1_2::
+            ISupplicantStaIface::castFrom(sta_iface_);
     }
 
    protected:
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
+    sp<::android::hardware::wifi::supplicant::V1_2::ISupplicantStaIface> v1_2 =
+        nullptr;
 };
 
 class IfaceCallback : public ISupplicantStaIfaceCallback {
@@ -133,10 +139,13 @@
  * RegisterCallback_1_1
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback_1_1) {
-    sta_iface_->registerCallback_1_1(
-        new IfaceCallback(), [](const SupplicantStatus& status) {
-            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
-        });
+    SupplicantStatusCode expectedCode =
+        (nullptr != v1_2) ? SupplicantStatusCode::FAILURE_UNKNOWN
+                          : SupplicantStatusCode::SUCCESS;
+    sta_iface_->registerCallback_1_1(new IfaceCallback(),
+                                     [&](const SupplicantStatus& status) {
+                                         EXPECT_EQ(expectedCode, status.code);
+                                     });
 }
 
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(SupplicantStaIfaceHidlTest);
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
index cd08468..7799390 100644
--- a/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -60,6 +60,9 @@
         sta_iface_ = getSupplicantStaIface_1_2(supplicant_);
         ASSERT_NE(sta_iface_.get(), nullptr);
         count_ = 0;
+
+        v1_3 = ::android::hardware::wifi::supplicant::V1_3::
+            ISupplicantStaIface::castFrom(sta_iface_);
     }
 
     enum DppCallbackType {
@@ -102,6 +105,7 @@
    protected:
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
+    sp<::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface> v1_3;
 
     bool isDppSupported() {
         uint32_t keyMgmtMask = 0;
@@ -262,10 +266,13 @@
  * RegisterCallback_1_2
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback_1_2) {
-    sta_iface_->registerCallback_1_2(
-        new IfaceCallback(), [](const SupplicantStatus& status) {
-            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
-        });
+    SupplicantStatusCode expectedCode =
+        (nullptr != v1_3) ? SupplicantStatusCode::FAILURE_UNKNOWN
+                          : SupplicantStatusCode::SUCCESS;
+    sta_iface_->registerCallback_1_2(new IfaceCallback(),
+                                     [&](const SupplicantStatus& status) {
+                                         EXPECT_EQ(expectedCode, status.code);
+                                     });
 }
 
 /*
@@ -339,9 +346,6 @@
      * it is waiting for will never be called. Note that this test is also
      * implemented in the 1.3 VTS test.
      */
-    sp<::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface> v1_3 =
-        ::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface::
-            castFrom(sta_iface_);
     if (v1_3 != nullptr) {
         GTEST_SKIP() << "Test not supported with this HAL version";
     }
@@ -404,10 +408,6 @@
      * it is waiting for will never be called. Note that this test is also
      * implemented in the 1.3 VTS test.
      */
-    sp<::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface> v1_3 =
-        ::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface::
-            castFrom(sta_iface_);
-
     if (v1_3 != nullptr) {
         GTEST_SKIP() << "Test not supported with this HAL version";
         return;
diff --git a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 189e2b9..9ffe0ec 100644
--- a/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.3/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -325,10 +325,13 @@
  * RegisterCallback_1_3
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback_1_3) {
-    sta_iface_->registerCallback_1_3(
-        new IfaceCallback(), [](const SupplicantStatus& status) {
-            EXPECT_EQ(SupplicantStatusCode::SUCCESS, status.code);
-        });
+    SupplicantStatusCode expectedCode =
+        (nullptr != sta_iface_v1_4_) ? SupplicantStatusCode::FAILURE_UNKNOWN
+                                     : SupplicantStatusCode::SUCCESS;
+    sta_iface_->registerCallback_1_3(new IfaceCallback(),
+                                     [&](const SupplicantStatus& status) {
+                                         EXPECT_EQ(expectedCode, status.code);
+                                     });
 }
 
 /*
@@ -428,6 +431,11 @@
         return;
     }
 
+    if (sta_iface_v1_4_ != nullptr) {
+        GTEST_SKIP() << "Test not supported with this HAL version";
+        return;
+    }
+
     hidl_string uri =
         "DPP:C:81/1,117/"
         "40;M:48d6d5bd1de1;I:G1197843;K:MDkwEwYHKoZIzj0CAQYIKoZIzj"
@@ -480,6 +488,11 @@
         return;
     }
 
+    if (sta_iface_v1_4_ != nullptr) {
+        GTEST_SKIP() << "Test not supported with this HAL version";
+        return;
+    }
+
     hidl_string uri =
         "DPP:C:81/1,117/"
         "40;M:48d6d5bd1de1;I:G1197843;K:MDkwEwYHKoZIzj0CAQYIKoZIzj"