diff --git a/services/camera/libcameraservice/Camera2Client.cpp b/services/camera/libcameraservice/Camera2Client.cpp
index 056271d..d3adbdc 100644
--- a/services/camera/libcameraservice/Camera2Client.cpp
+++ b/services/camera/libcameraservice/Camera2Client.cpp
@@ -1255,7 +1255,7 @@
             ANDROID_STATISTICS_FACE_DETECT_MODE_OFF) {
         ALOGE("%s: Camera %d: Face detection not supported",
                 __FUNCTION__, mCameraId);
-        return INVALID_OPERATION;
+        return BAD_VALUE;
     }
     if (l.mParameters.enableFaceDetect) return OK;
 
diff --git a/services/camera/libcameraservice/camera2/Parameters.cpp b/services/camera/libcameraservice/camera2/Parameters.cpp
index 859e2e9..d13fe8b 100644
--- a/services/camera/libcameraservice/camera2/Parameters.cpp
+++ b/services/camera/libcameraservice/camera2/Parameters.cpp
@@ -534,6 +534,8 @@
         if (!noSceneModes) {
             params.set(CameraParameters::KEY_SUPPORTED_SCENE_MODES,
                     supportedSceneModes);
+        } else {
+            params.remove(CameraParameters::KEY_SCENE_MODE);
         }
     }