diff --git a/services/core/java/com/android/server/biometrics/AuthService.java b/services/core/java/com/android/server/biometrics/AuthService.java
index 5cd330a5753c7..0cd2e3d0ff593 100644
--- a/services/core/java/com/android/server/biometrics/AuthService.java
+++ b/services/core/java/com/android/server/biometrics/AuthService.java
@@ -261,7 +261,7 @@ public class AuthService extends SystemService {
         private void authenticateFastFail(String message, IBiometricServiceReceiver receiver) {
             // notify caller in cases where authentication is aborted before calling into
             // IBiometricService without raising an exception
-            Slog.e(TAG, message);
+            Slog.e(TAG, "authenticateFastFail: " + message);
             try {
                 receiver.onError(TYPE_NONE, BIOMETRIC_ERROR_CANCELED, 0 /*vendorCode */);
             } catch (RemoteException e) {
diff --git a/services/core/java/com/android/server/biometrics/AuthSession.java b/services/core/java/com/android/server/biometrics/AuthSession.java
index bfb42f81bb4da..bdde980f5cae3 100644
--- a/services/core/java/com/android/server/biometrics/AuthSession.java
+++ b/services/core/java/com/android/server/biometrics/AuthSession.java
@@ -382,9 +382,7 @@ public final class AuthSession implements IBinder.DeathRecipient {
      */
     boolean onErrorReceived(int sensorId, int cookie, @BiometricConstants.Errors int error,
             int vendorCode) throws RemoteException {
-        if (DEBUG) {
-            Slog.v(TAG, "onErrorReceived sensor: " + sensorId + " error: " + error);
-        }
+        Slog.d(TAG, "onErrorReceived sensor: " + sensorId + " error: " + error);
 
         if (!containsCookie(cookie)) {
             Slog.e(TAG, "Unknown/expired cookie: " + cookie);
diff --git a/services/core/java/com/android/server/biometrics/sensors/AcquisitionClient.java b/services/core/java/com/android/server/biometrics/sensors/AcquisitionClient.java
index c8fb80ac39288..ca357b4c2cec0 100644
--- a/services/core/java/com/android/server/biometrics/sensors/AcquisitionClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/AcquisitionClient.java
@@ -87,6 +87,8 @@ public abstract class AcquisitionClient<T> extends HalClientMonitor<T> implement
      * operation still needs to wait for the HAL to send ERROR_CANCELED.
      */
     public void onUserCanceled() {
+        Slog.d(TAG, "onUserCanceled");
+
         // Send USER_CANCELED, but do not finish. Wait for the HAL to respond with ERROR_CANCELED,
         // which then finishes the AcquisitionClient's lifecycle.
         onErrorInternal(BiometricConstants.BIOMETRIC_ERROR_USER_CANCELED, 0 /* vendorCode */,
@@ -95,6 +97,8 @@ public abstract class AcquisitionClient<T> extends HalClientMonitor<T> implement
     }
 
     protected void onErrorInternal(int errorCode, int vendorCode, boolean finish) {
+        Slog.d(TAG, "onErrorInternal code: " + errorCode + ", finish: " + finish);
+
         // In some cases, the framework will send an error to the caller before a true terminal
         // case (success, failure, or error) is received from the HAL (e.g. versions of fingerprint
         // that do not handle lockout under the HAL. In these cases, ensure that the framework only
@@ -133,6 +137,8 @@ public abstract class AcquisitionClient<T> extends HalClientMonitor<T> implement
 
     @Override
     public void cancelWithoutStarting(@NonNull Callback callback) {
+        Slog.d(TAG, "cancelWithoutStarting: " + this);
+
         final int errorCode = BiometricConstants.BIOMETRIC_ERROR_CANCELED;
         try {
             if (getListener() != null) {
diff --git a/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
index cf545f37bd431..80e60e67f05a6 100644
--- a/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
@@ -308,7 +308,7 @@ public abstract class AuthenticationClient<T> extends AcquisitionClient<T>
             mActivityTaskManager.registerTaskStackListener(mTaskStackListener);
         }
 
-        if (DEBUG) Slog.w(TAG, "Requesting auth for " + getOwnerString());
+        Slog.d(TAG, "Requesting auth for " + getOwnerString());
 
         mStartTimeMs = System.currentTimeMillis();
         mAuthAttempted = true;