diff --git a/biometrics/face/aidl/default/Android.bp b/biometrics/face/aidl/default/Android.bp
index 82ad917..7bc2198 100644
--- a/biometrics/face/aidl/default/Android.bp
+++ b/biometrics/face/aidl/default/Android.bp
@@ -8,20 +8,20 @@
 }
 
 filegroup {
-    name: "face-default.rc",
-    srcs: ["face-default.rc"],
+    name: "face-example.rc",
+    srcs: ["face-example.rc"],
 }
 
 filegroup {
-    name: "face-default.xml",
-    srcs: ["face-default.xml"],
+    name: "face-example.xml",
+    srcs: ["face-example.xml"],
 }
 
 cc_binary {
     name: "android.hardware.biometrics.face-service.example",
     relative_install_path: "hw",
-    init_rc: [":face-default.rc"],
-    vintf_fragments: [":face-default.xml"],
+    init_rc: [":face-example.rc"],
+    vintf_fragments: [":face-example.xml"],
     vendor: true,
     shared_libs: [
         "libbase",
diff --git a/biometrics/face/aidl/default/FakeFaceEngine.h b/biometrics/face/aidl/default/FakeFaceEngine.h
index edb54ce..eb99441 100644
--- a/biometrics/face/aidl/default/FakeFaceEngine.h
+++ b/biometrics/face/aidl/default/FakeFaceEngine.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#define LOG_TAG "FaceVirtualHal"
+
 #include <aidl/android/hardware/biometrics/common/SensorStrength.h>
 #include <aidl/android/hardware/biometrics/face/BnSession.h>
 #include <aidl/android/hardware/biometrics/face/FaceSensorType.h>
@@ -62,4 +64,4 @@
     std::mt19937 mRandom;
 };
 
-}  // namespace aidl::android::hardware::biometrics::face
\ No newline at end of file
+}  // namespace aidl::android::hardware::biometrics::face
diff --git a/biometrics/face/aidl/default/README.md b/biometrics/face/aidl/default/README.md
index 1655973..77bfe57 100644
--- a/biometrics/face/aidl/default/README.md
+++ b/biometrics/face/aidl/default/README.md
@@ -1,77 +1,63 @@
-# Virtual Face HAL
+# Face Virtual HAL (VHAL)
 
 This is a virtual HAL implementation that is backed by system properties
 instead of actual hardware. It's intended for testing and UI development
 on debuggable builds to allow devices to masquerade as alternative device
 types and for emulators.
+Note: The virtual face HAL feature development will be done in phases. Refer to this doc often for
+the latest supported features
 
-## Device Selection
+## Supported Devices
 
-You can either run the FakeFaceEngine on a [real device](#actual-device) or a [virtual device/cuttlefish](#getting-started-on-a-virtual-device-cuttlefish). This document should
-help you to get started on either one.
+The face virtual hal is automatically built in in all debug builds (userdebug and eng) for the latest pixel devices and CF.
+The instructions in this doc applies  to all
 
-After setting up a device, go ahead and try out [enrolling](#enrolling) & [authenticating](#authenticating)
+## Enabling Face Virtual HAL
 
-### Getting started on a Virtual Device (cuttlefish)
+On pixel devicse (non-CF), by default (after manufacture reset), Face VHAL is not enabled. Therefore real Face HAL is used.
+Face VHAL enabling is gated by the following two AND conditions:
+1. The Face VHAL feature flag (as part of Trunk-development strategy) must be tured until the flags life-cycle ends.
+2. The Face VHAL must be enabled via sysprop
 
+##Getting Stared
 
-Note, I'm running this via a cloudtop virtual device.
+A basic use case for a successful authentication via Face VHAL is given as an exmple below.
 
-1. Setup cuttlefish on cloudtop, See [this](https://g3doc.corp.google.com/company/teams/android/teampages/acloud/getting_started.md?cl=head) for more details.
-2. acloud create --local-image
-3. Enter in the shell command to disable hidl
-
+### Enabling VHAL
 ```shell
 $ adb root
-$ adb shell settings put secure com.android.server.biometrics.AuthService.hidlDisabled 1
-$ adb reboot
-```
-4. You should now be able to do fake enrollments and authentications (as seen down below)
-
-### Actual Device
-
-1. Modify your real devices make file (I.E. vendor/google/products/{YOUR_DEVICE}.mk)
-2. Ensure that there is no other face HAL that is being included by the device
-3. Add the following
-```
-PRODUCT_COPY_FILES += \
-    frameworks/native/data/etc/android.hardware.biometrics.face.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/permissions/android.hardware.biometrics.face.xml
-
-PRODUCT_PACKAGES += \
-    android.hardware.biometrics.face-service.example \
-
-```
-4. Now build and flash m -j120 && flash
-5. Run the following commands
-
-```shell
-# This is a temporary workaround
-$ adb root
-$ adb shell setprop persist.vendor.face.virtual.type RGB
+$ adb shell device_config put biometrics_framework com.android.server.biometrics.face_vhal_feature true
+$ adb shell settings put secure biometric_virtual_enabled 1
 $ adb shell setprop persist.vendor.face.virtual.strength strong
-$ adb shell locksettings set-pin 0000
+$ adb shell setprop persist.vendor.face.virtual.type RGB
 $ adb reboot
 ```
 
-## Enrolling
+### Direct Enrollment
+```shell
+$ adb shell locksettings set-pin 0000
+$ adb shell setprop persist.vendor.face.virtual.enrollments 1
+$ adb shell cmd face syncadb shell cmd face sync
+```
+
+## Authenticating
+To authenticate successfully, the captured (hit) must match the enrollment id set above. To  trigger
+authentication failure, set the hit id to a different value.
+```shell
+$ adb shell setprop vendor.face.virtual.operation_authenticate_duration 800
+$ adb shell setprop vendor.face.virtual.enrollment_hit 1
+```
+Note: At the initial phase of the Face VHAL development, Face-on-camera simulation is not supported, hence
+the authentication immediately occurrs  as soon as the authentication request arriving at VHAL.
+
+
+## Enrollment via Setup
 
 ```shell
 # authenticar_id,bucket_id:duration:(true|false)....
 $ adb shell setprop vendor.face.virtual.next_enrollment 1,0:500:true,5:250:true,10:150:true,15:500:true
-$ adb shell am start -n com.android.settings/.biometrics.face.FaceEnrollIntroduction
+$ walk thru the manual enrollment process by following screen instructions
+
 # If you would like to get rid of the enrollment, run the follwoing command
 $ adb shell setprop persist.vendor.face.virtual.enrollments \"\"
 ```
-
-## Authenticating
-
-```shell
-# If enrollment hasn't been setup
-$ adb shell setprop persist.vendor.face.virtual.enrollments 1
-$ adb shell cmd face sync
-# After enrollment has been setup
-$ adb shell setprop vendor.face.virtual.operation_authenticate_duration 800
-$ adb shell setprop vendor.face.virtual.enrollment_hit 1
-# Power button press to simulate auth
-$ adb shell input keyevent 26
-```
diff --git a/biometrics/face/aidl/default/Session.cpp b/biometrics/face/aidl/default/Session.cpp
index 1188459..6235b83 100644
--- a/biometrics/face/aidl/default/Session.cpp
+++ b/biometrics/face/aidl/default/Session.cpp
@@ -18,6 +18,9 @@
 
 #include "Session.h"
 
+#undef LOG_TAG
+#define LOG_TAG "FaceVirtualHalSession"
+
 namespace aidl::android::hardware::biometrics::face {
 
 constexpr size_t MAX_WORKER_QUEUE_SIZE = 5;
diff --git a/biometrics/face/aidl/default/apex/Android.bp b/biometrics/face/aidl/default/apex/Android.bp
index 2f39a08..9c031a3 100644
--- a/biometrics/face/aidl/default/apex/Android.bp
+++ b/biometrics/face/aidl/default/apex/Android.bp
@@ -17,24 +17,23 @@
 }
 
 apex_key {
-    name: "com.android.hardware.biometrics.face.key",
-    public_key: "com.android.hardware.biometrics.face.avbpubkey",
-    private_key: "com.android.hardware.biometrics.face.pem",
+    name: "com.android.hardware.biometrics.face.virtual.key",
+    public_key: "com.android.hardware.biometrics.face.virtual.avbpubkey",
+    private_key: "com.android.hardware.biometrics.face.virtual.pem",
 }
 
 android_app_certificate {
-    name: "com.android.hardware.biometrics.face.certificate",
-    certificate: "com.android.hardware.biometrics.face",
+    name: "com.android.hardware.biometrics.face.virtual.certificate",
+    certificate: "com.android.hardware.biometrics.face.virtual",
 }
 
 apex {
-    name: "com.android.hardware.biometrics.face",
+    name: "com.android.hardware.biometrics.face.virtual",
     manifest: "manifest.json",
     file_contexts: "file_contexts",
-    key: "com.android.hardware.biometrics.face.key",
-    certificate: ":com.android.hardware.biometrics.face.certificate",
+    key: "com.android.hardware.biometrics.face.virtual.key",
+    certificate: ":com.android.hardware.biometrics.face.virtual.certificate",
     updatable: false,
-
     vendor: true,
     use_vndk_as_stable: true,
 
@@ -44,11 +43,9 @@
     ],
     prebuilts: [
         // init_rc
-        "face-default-apex.rc",
+        "face-example-apex.rc",
         // vintf_fragment
-        "face-default-apex.xml",
-        // permission
-        "android.hardware.biometrics.face.prebuilt.xml",
+        "face-example-apex.xml",
     ],
 
     overrides: [
@@ -57,23 +54,21 @@
 }
 
 prebuilt_etc {
-    name: "face-default-apex.rc",
-    src: ":gen-face-default-apex.rc",
-    vendor: true,
+    name: "face-example-apex.rc",
+    src: ":gen-face-example-apex.rc",
     installable: false,
 }
 
 genrule {
-    name: "gen-face-default-apex.rc",
-    srcs: [":face-default.rc"],
-    out: ["face-default-apex.rc"],
-    cmd: "sed -e 's@/vendor/bin/@/apex/com.android.hardware.biometrics.face/bin/@' $(in) > $(out)",
+    name: "gen-face-example-apex.rc",
+    srcs: [":face-example.rc"],
+    out: ["face-example-apex.rc"],
+    cmd: "sed -e 's@/vendor/bin/@/apex/com.android.hardware.biometrics.face.virtual/bin/@' $(in) > $(out)",
 }
 
 prebuilt_etc {
-    name: "face-default-apex.xml",
-    src: ":face-default.xml",
+    name: "face-example-apex.xml",
+    src: ":face-example.xml",
     sub_dir: "vintf",
-    vendor: true,
     installable: false,
 }
diff --git a/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.avbpubkey b/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.avbpubkey
similarity index 100%
rename from biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.avbpubkey
rename to biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.avbpubkey
Binary files differ
diff --git a/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.pem b/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.pem
similarity index 100%
rename from biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.pem
rename to biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.pem
diff --git a/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.pk8 b/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.pk8
similarity index 100%
rename from biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.pk8
rename to biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.pk8
Binary files differ
diff --git a/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.x509.pem b/biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.x509.pem
similarity index 100%
rename from biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.x509.pem
rename to biometrics/face/aidl/default/apex/com.android.hardware.biometrics.face.virtual.x509.pem
diff --git a/biometrics/face/aidl/default/apex/manifest.json b/biometrics/face/aidl/default/apex/manifest.json
index 4d46896..ecdc299 100644
--- a/biometrics/face/aidl/default/apex/manifest.json
+++ b/biometrics/face/aidl/default/apex/manifest.json
@@ -1,4 +1,4 @@
 {
-    "name": "com.android.hardware.biometrics.face",
+    "name": "com.android.hardware.biometrics.face.virtual",
     "version": 1
 }
diff --git a/biometrics/face/aidl/default/face-default.rc b/biometrics/face/aidl/default/face-default.rc
deleted file mode 100644
index f6499f0..0000000
--- a/biometrics/face/aidl/default/face-default.rc
+++ /dev/null
@@ -1,5 +0,0 @@
-service vendor.face-default /vendor/bin/hw/android.hardware.biometrics.face-service.example
-    class hal
-    user nobody
-    group nobody
-
diff --git a/biometrics/face/aidl/default/face-example.rc b/biometrics/face/aidl/default/face-example.rc
new file mode 100644
index 0000000..b0d82c6
--- /dev/null
+++ b/biometrics/face/aidl/default/face-example.rc
@@ -0,0 +1,8 @@
+service vendor.face-example /vendor/bin/hw/android.hardware.biometrics.face-service.example
+    class hal
+    user nobody
+    group nobody
+    interface aidl android.hardware.biometrics.face.IFace/virtual
+    oneshot
+    disabled
+
diff --git a/biometrics/face/aidl/default/face-default.xml b/biometrics/face/aidl/default/face-example.xml
similarity index 81%
rename from biometrics/face/aidl/default/face-default.xml
rename to biometrics/face/aidl/default/face-example.xml
index 8f2fbb8..1c5071a 100644
--- a/biometrics/face/aidl/default/face-default.xml
+++ b/biometrics/face/aidl/default/face-example.xml
@@ -2,6 +2,6 @@
     <hal format="aidl">
         <name>android.hardware.biometrics.face</name>
         <version>3</version>
-        <fqname>IFace/default</fqname>
+        <fqname>IFace/virtual</fqname>
     </hal>
 </manifest>
diff --git a/biometrics/face/aidl/default/main.cpp b/biometrics/face/aidl/default/main.cpp
index b7274e3..38e1c63 100644
--- a/biometrics/face/aidl/default/main.cpp
+++ b/biometrics/face/aidl/default/main.cpp
@@ -27,9 +27,11 @@
     ABinderProcess_setThreadPoolMaxThreadCount(0);
     std::shared_ptr<Face> hal = ndk::SharedRefBase::make<Face>();
 
-    const std::string instance = std::string(Face::descriptor) + "/default";
-    binder_status_t status = AServiceManager_addService(hal->asBinder().get(), instance.c_str());
+    const std::string instance = std::string(Face::descriptor) + "/virtual";
+    binder_status_t status =
+            AServiceManager_registerLazyService(hal->asBinder().get(), instance.c_str());
     CHECK_EQ(status, STATUS_OK);
+    AServiceManager_forceLazyServicesPersist(true);
 
     ABinderProcess_joinThreadPool();
     return EXIT_FAILURE;  // should not reach