diff --git a/biometrics/fingerprint/2.1/default/BiometricsFingerprint.cpp b/biometrics/fingerprint/2.1/default/BiometricsFingerprint.cpp
index 16197d7..c6774ca 100644
--- a/biometrics/fingerprint/2.1/default/BiometricsFingerprint.cpp
+++ b/biometrics/fingerprint/2.1/default/BiometricsFingerprint.cpp
@@ -268,6 +268,7 @@
         case FINGERPRINT_ERROR: {
                 int32_t vendorCode = 0;
                 FingerprintError result = VendorErrorFilter(msg->data.error, &vendorCode);
+                ALOGD("onError(%d)", result);
                 if (!thisPtr->mClientCallback->onError(devId, result, vendorCode).isOk()) {
                     ALOGE("failed to invoke fingerprint onError callback");
                 }
@@ -277,12 +278,17 @@
                 int32_t vendorCode = 0;
                 FingerprintAcquiredInfo result =
                     VendorAcquiredFilter(msg->data.acquired.acquired_info, &vendorCode);
+                ALOGD("onAcquired(%d)", result);
                 if (!thisPtr->mClientCallback->onAcquired(devId, result, vendorCode).isOk()) {
                     ALOGE("failed to invoke fingerprint onAcquired callback");
                 }
             }
             break;
         case FINGERPRINT_TEMPLATE_ENROLLING:
+            ALOGD("onEnrollResult(fid=%d, gid=%d, rem=%d)",
+                msg->data.enroll.finger.fid,
+                msg->data.enroll.finger.gid,
+                msg->data.enroll.samples_remaining);
             if (!thisPtr->mClientCallback->onEnrollResult(devId,
                     msg->data.enroll.finger.fid,
                     msg->data.enroll.finger.gid,
@@ -291,6 +297,10 @@
             }
             break;
         case FINGERPRINT_TEMPLATE_REMOVED:
+            ALOGD("onRemove(fid=%d, gid=%d, rem=%d)",
+                msg->data.removed.finger.fid,
+                msg->data.removed.finger.gid,
+                msg->data.removed.remaining_templates);
             if (!thisPtr->mClientCallback->onRemoved(devId,
                     msg->data.removed.finger.fid,
                     msg->data.removed.finger.gid,
@@ -300,6 +310,9 @@
             break;
         case FINGERPRINT_AUTHENTICATED:
             if (msg->data.authenticated.finger.fid != 0) {
+                ALOGD("onAuthenticated(fid=%d, gid=%d)",
+                    msg->data.authenticated.finger.fid,
+                    msg->data.authenticated.finger.gid);
                 const uint8_t* hat =
                     reinterpret_cast<const uint8_t *>(&msg->data.authenticated.hat);
                 const hidl_vec<uint8_t> token(
@@ -321,6 +334,10 @@
             }
             break;
         case FINGERPRINT_TEMPLATE_ENUMERATING:
+            ALOGD("onEnumerate(fid=%d, gid=%d, rem=%d)",
+                msg->data.enumerated.finger.fid,
+                msg->data.enumerated.finger.gid,
+                msg->data.enumerated.remaining_templates);
             if (!thisPtr->mClientCallback->onEnumerate(devId,
                     msg->data.enumerated.finger.fid,
                     msg->data.enumerated.finger.gid,