diff --git a/audio/4.0/Android.bp b/audio/4.0/Android.bp
index dfc3047..4957a14 100644
--- a/audio/4.0/Android.bp
+++ b/audio/4.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.audio@4.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     srcs: [
         "types.hal",
         "IDevice.hal",
diff --git a/audio/common/2.0/Android.bp b/audio/common/2.0/Android.bp
index bd3b069..56b43ff 100644
--- a/audio/common/2.0/Android.bp
+++ b/audio/common/2.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.audio.common@2.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     vndk: {
         enabled: true,
     },
diff --git a/audio/common/4.0/Android.bp b/audio/common/4.0/Android.bp
index 1b0a624..dc4bca4 100644
--- a/audio/common/4.0/Android.bp
+++ b/audio/common/4.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.audio.common@4.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     srcs: [
         "types.hal",
     ],
diff --git a/audio/effect/2.0/Android.bp b/audio/effect/2.0/Android.bp
index 6b5d8aa..a5a8b34 100644
--- a/audio/effect/2.0/Android.bp
+++ b/audio/effect/2.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.audio.effect@2.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     srcs: [
         "types.hal",
         "IAcousticEchoCancelerEffect.hal",
diff --git a/audio/effect/4.0/Android.bp b/audio/effect/4.0/Android.bp
index f396dcd..31f94ae 100644
--- a/audio/effect/4.0/Android.bp
+++ b/audio/effect/4.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.audio.effect@4.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     srcs: [
         "types.hal",
         "IAcousticEchoCancelerEffect.hal",
diff --git a/identity/aidl/vts/VtsHalIdentityEndToEndTest.cpp b/identity/aidl/vts/VtsHalIdentityEndToEndTest.cpp
index 1577293..e347654 100644
--- a/identity/aidl/vts/VtsHalIdentityEndToEndTest.cpp
+++ b/identity/aidl/vts/VtsHalIdentityEndToEndTest.cpp
@@ -386,7 +386,7 @@
 
     vector<RequestNamespace> requestedNamespaces = test_utils::buildRequestNamespaces(testEntries);
     // OK to fail, not available in v1 HAL
-    credential->setRequestedNamespaces(requestedNamespaces).isOk();
+    credential->setRequestedNamespaces(requestedNamespaces);
     // OK to fail, not available in v1 HAL
     credential->setVerificationToken(verificationToken);
     ASSERT_TRUE(credential
@@ -446,7 +446,6 @@
     deviceAuthentication.add(cppbor::Semantic(24, deviceNameSpacesBytes));
     vector<uint8_t> deviceAuthenticationBytes =
             cppbor::Semantic(24, deviceAuthentication.encode()).encode();
-
     // Derive the key used for MACing.
     optional<vector<uint8_t>> readerEphemeralPrivateKey =
             support::ecKeyPairGetPrivateKey(readerEphemeralKeyPair.value());
@@ -469,6 +468,58 @@
                               deviceAuthenticationBytes);  // detached content
     ASSERT_TRUE(calculatedMac);
     EXPECT_EQ(mac, calculatedMac);
+
+    // Also perform an additional empty request. This is what mDL applications
+    // are envisioned to do - one call to get the data elements, another to get
+    // an empty DeviceSignedItems and corresponding MAC.
+    //
+    credential->setRequestedNamespaces({});  // OK to fail, not available in v1 HAL
+    ASSERT_TRUE(credential
+                        ->startRetrieval(
+                                secureProfiles.value(), authToken, {},         // itemsRequestBytes
+                                signingKeyBlob, sessionTranscriptEncoded, {},  // readerSignature,
+                                testEntriesEntryCounts)
+                        .isOk());
+    ASSERT_TRUE(credential->finishRetrieval(&mac, &deviceNameSpacesBytes).isOk());
+    cborPretty = support::cborPrettyPrint(deviceNameSpacesBytes, 32, {});
+    ASSERT_EQ("{}", cborPretty);
+    // Calculate DeviceAuthentication and MAC (MACing key hasn't changed)
+    deviceAuthentication = cppbor::Array();
+    deviceAuthentication.add("DeviceAuthentication");
+    deviceAuthentication.add(sessionTranscript.clone());
+    deviceAuthentication.add(docType);
+    deviceAuthentication.add(cppbor::Semantic(24, deviceNameSpacesBytes));
+    deviceAuthenticationBytes = cppbor::Semantic(24, deviceAuthentication.encode()).encode();
+    calculatedMac = support::coseMac0(derivedKey.value(), {},      // payload
+                                      deviceAuthenticationBytes);  // detached content
+    ASSERT_TRUE(calculatedMac);
+    EXPECT_EQ(mac, calculatedMac);
+
+    // Some mDL apps might send a request but with a single empty
+    // namespace. Check that too.
+    RequestNamespace emptyRequestNS;
+    emptyRequestNS.namespaceName = "PersonalData";
+    credential->setRequestedNamespaces({emptyRequestNS});  // OK to fail, not available in v1 HAL
+    ASSERT_TRUE(credential
+                        ->startRetrieval(
+                                secureProfiles.value(), authToken, {},         // itemsRequestBytes
+                                signingKeyBlob, sessionTranscriptEncoded, {},  // readerSignature,
+                                testEntriesEntryCounts)
+                        .isOk());
+    ASSERT_TRUE(credential->finishRetrieval(&mac, &deviceNameSpacesBytes).isOk());
+    cborPretty = support::cborPrettyPrint(deviceNameSpacesBytes, 32, {});
+    ASSERT_EQ("{}", cborPretty);
+    // Calculate DeviceAuthentication and MAC (MACing key hasn't changed)
+    deviceAuthentication = cppbor::Array();
+    deviceAuthentication.add("DeviceAuthentication");
+    deviceAuthentication.add(sessionTranscript.clone());
+    deviceAuthentication.add(docType);
+    deviceAuthentication.add(cppbor::Semantic(24, deviceNameSpacesBytes));
+    deviceAuthenticationBytes = cppbor::Semantic(24, deviceAuthentication.encode()).encode();
+    calculatedMac = support::coseMac0(derivedKey.value(), {},      // payload
+                                      deviceAuthenticationBytes);  // detached content
+    ASSERT_TRUE(calculatedMac);
+    EXPECT_EQ(mac, calculatedMac);
 }
 
 INSTANTIATE_TEST_SUITE_P(
diff --git a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
index 29cb127..24b7fd5 100644
--- a/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
+++ b/radio/1.5/vts/functional/radio_hidl_hal_api.cpp
@@ -249,7 +249,7 @@
     signalThresholdInfo.signalMeasurement = SignalMeasurementType::SSRSRQ;
     signalThresholdInfo.hysteresisMs = 5000;
     signalThresholdInfo.hysteresisDb = 0;
-    signalThresholdInfo.thresholds = {-15, -10, -5, -4};
+    signalThresholdInfo.thresholds = {-43, -20, 0, 20};
     signalThresholdInfo.isEnabled = true;
 
     Return<void> res = radio_v1_5->setSignalStrengthReportingCriteria_1_5(
diff --git a/renderscript/1.0/Android.bp b/renderscript/1.0/Android.bp
index feae9f7..d3b5abe 100644
--- a/renderscript/1.0/Android.bp
+++ b/renderscript/1.0/Android.bp
@@ -3,6 +3,8 @@
 hidl_interface {
     name: "android.hardware.renderscript@1.0",
     root: "android.hardware",
+    // TODO(b/153609531): remove when no longer needed.
+    native_bridge_supported: true,
     vndk: {
         enabled: true,
         support_system_process: true,
diff --git a/tests/msgq/1.0/default/mq_test_service.cpp b/tests/msgq/1.0/default/mq_test_service.cpp
index b5cb662..b921bfd 100644
--- a/tests/msgq/1.0/default/mq_test_service.cpp
+++ b/tests/msgq/1.0/default/mq_test_service.cpp
@@ -24,5 +24,6 @@
 using android::hardware::defaultPassthroughServiceImplementation;
 
 int main() {
+    android::hardware::details::setTrebleTestingOverride(true);
     return defaultPassthroughServiceImplementation<ITestMsgQ>();
 }
diff --git a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
index 3ff33a5..5b11dd3 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.cpp
@@ -89,8 +89,12 @@
 }
 }  // namespace
 
+sp<IWifi> getWifi(const std::string& instance_name) {
+    return IWifi::getService(instance_name);
+}
+
 sp<IWifiChip> getWifiChip(const std::string& instance_name) {
-    sp<IWifi> wifi = IWifi::getService(instance_name);
+    sp<IWifi> wifi = getWifi(instance_name);
     if (!wifi.get()) {
         return nullptr;
     }
diff --git a/wifi/1.0/vts/functional/wifi_hidl_test_utils.h b/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
index d22ed77..5c78637 100644
--- a/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
+++ b/wifi/1.0/vts/functional/wifi_hidl_test_utils.h
@@ -31,6 +31,8 @@
 // Note: We only have a single instance of each of these objects currently.
 // These helper functions should be modified to return vectors if we support
 // multiple instances.
+android::sp<android::hardware::wifi::V1_0::IWifi> getWifi(
+    const std::string& instance_name);
 android::sp<android::hardware::wifi::V1_0::IWifiChip> getWifiChip(
     const std::string& instance_name);
 android::sp<android::hardware::wifi::V1_0::IWifiApIface> getWifiApIface(
diff --git a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
index d4063fe..3ddb2b3 100644
--- a/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
+++ b/wifi/hostapd/1.0/vts/functional/hostapd_hidl_test_utils.cpp
@@ -47,16 +47,24 @@
 // Helper function to initialize the driver and firmware to AP mode
 // using the vendor HAL HIDL interface.
 void initilializeDriverAndFirmware(const std::string& wifi_instance_name) {
-    sp<IWifiChip> wifi_chip = getWifiChip(wifi_instance_name);
-    ChipModeId mode_id;
-    EXPECT_TRUE(configureChipToSupportIfaceType(
-        wifi_chip, ::android::hardware::wifi::V1_0::IfaceType::AP, &mode_id));
+    if (getWifi(wifi_instance_name) != nullptr) {
+        sp<IWifiChip> wifi_chip = getWifiChip(wifi_instance_name);
+        ChipModeId mode_id;
+        EXPECT_TRUE(configureChipToSupportIfaceType(
+            wifi_chip, ::android::hardware::wifi::V1_0::IfaceType::AP, &mode_id));
+    } else {
+        LOG(WARNING) << __func__ << ": Vendor HAL not supported";
+    }
 }
 
 // Helper function to deinitialize the driver and firmware
 // using the vendor HAL HIDL interface.
 void deInitilializeDriverAndFirmware(const std::string& wifi_instance_name) {
-    stopWifi(wifi_instance_name);
+    if (getWifi(wifi_instance_name) != nullptr) {
+        stopWifi(wifi_instance_name);
+    } else {
+        LOG(WARNING) << __func__ << ": Vendor HAL not supported";
+    }
 }
 }  // namespace
 
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
index 3815323..addf066 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_hidl_test_utils.cpp
@@ -58,11 +58,14 @@
     if (wifi_instance_name == "") {
         return;
     }
-
-    sp<IWifiChip> wifi_chip = getWifiChip(wifi_instance_name);
-    ChipModeId mode_id;
-    EXPECT_TRUE(configureChipToSupportIfaceType(
-        wifi_chip, ::android::hardware::wifi::V1_0::IfaceType::STA, &mode_id));
+    if (getWifi(wifi_instance_name) != nullptr) {
+        sp<IWifiChip> wifi_chip = getWifiChip(wifi_instance_name);
+        ChipModeId mode_id;
+        EXPECT_TRUE(configureChipToSupportIfaceType(
+            wifi_chip, ::android::hardware::wifi::V1_0::IfaceType::STA, &mode_id));
+    } else {
+        LOG(WARNING) << __func__ << ": Vendor HAL not supported";
+    }
 }
 
 // Helper function to deinitialize the driver and firmware
@@ -72,8 +75,11 @@
     if (wifi_instance_name == "") {
         return;
     }
-
-    stopWifi(wifi_instance_name);
+    if (getWifi(wifi_instance_name) != nullptr) {
+        stopWifi(wifi_instance_name);
+    } else {
+        LOG(WARNING) << __func__ << ": Vendor HAL not supported";
+    }
 }
 
 // Helper function to find any iface of the desired type exposed.