diff --git a/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp b/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
index 574570e..4e80052 100644
--- a/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeFingerprintEngine.cpp
@@ -32,7 +32,9 @@
 namespace aidl::android::hardware::biometrics::fingerprint {
 
 FakeFingerprintEngine::FakeFingerprintEngine()
-    : mRandom(std::mt19937::default_seed), mWorkMode(WorkMode::kIdle) {}
+    : mRandom(std::mt19937::default_seed),
+      mWorkMode(WorkMode::kIdle),
+      isLockoutTimerSupported(true) {}
 
 void FakeFingerprintEngine::generateChallengeImpl(ISessionCallback* cb) {
     BEGIN_OP(0);
@@ -305,15 +307,6 @@
         SLEEP_MS(duration / N);
     } while (!Util::hasElapsed(now, duration));
 
-    auto id = FingerprintHalProperties::enrollment_hit().value_or(0);
-    auto enrolls = FingerprintHalProperties::enrollments();
-    auto isEnrolled = std::find(enrolls.begin(), enrolls.end(), id) != enrolls.end();
-    if (id <= 0 || !isEnrolled) {
-        LOG(ERROR) << "Fail: not enrolled";
-        cb->onError(Error::UNABLE_TO_PROCESS, 0 /* vendorError */);
-        return true;
-    }
-
     cb->onInteractionDetected();
 
     return true;
@@ -386,7 +379,7 @@
         return;
     }
     clearLockout(cb);
-    isLockoutTimerAborted = true;
+    if (isLockoutTimerStarted) isLockoutTimerAborted = true;
 }
 
 void FakeFingerprintEngine::clearLockout(ISessionCallback* cb) {
@@ -533,6 +526,7 @@
     isLockoutTimerStarted = true;
 }
 void FakeFingerprintEngine::lockoutTimerExpired(ISessionCallback* cb) {
+    BEGIN_OP(0);
     if (!isLockoutTimerAborted) {
         clearLockout(cb);
     }
diff --git a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
index a78cdcd..acb792d 100644
--- a/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
+++ b/biometrics/fingerprint/aidl/default/FakeFingerprintEngineSide.cpp
@@ -27,9 +27,7 @@
 
 namespace aidl::android::hardware::biometrics::fingerprint {
 
-FakeFingerprintEngineSide::FakeFingerprintEngineSide() : FakeFingerprintEngine() {
-    isLockoutTimerSupported = true;
-}
+FakeFingerprintEngineSide::FakeFingerprintEngineSide() : FakeFingerprintEngine() {}
 
 SensorLocation FakeFingerprintEngineSide::defaultSensorLocation() {
     return SensorLocation{.sensorLocationX = defaultSensorLocationX,
diff --git a/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp b/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
index 45b5be8..eedcae1 100644
--- a/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
+++ b/biometrics/fingerprint/aidl/default/tests/FakeFingerprintEngineTest.cpp
@@ -357,7 +357,7 @@
     FingerprintHalProperties::enrollment_hit({});
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
     mEngine.fingerDownAction();
-    ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
+    ASSERT_EQ(1, mCallback->mInteractionDetectedCount);
 }
 
 TEST_F(FakeFingerprintEngineTest, InteractionDetectNotEnrolled) {
@@ -365,7 +365,7 @@
     FingerprintHalProperties::enrollment_hit(25);
     mEngine.detectInteractionImpl(mCallback.get(), mCancel.get_future());
     mEngine.fingerDownAction();
-    ASSERT_EQ(0, mCallback->mInteractionDetectedCount);
+    ASSERT_EQ(1, mCallback->mInteractionDetectedCount);
 }
 
 TEST_F(FakeFingerprintEngineTest, InteractionDetectError) {
@@ -508,7 +508,7 @@
 TEST_F(FakeFingerprintEngineTest, lockoutTimer) {
     mEngine.startLockoutTimer(200, mCallback.get());
     ASSERT_TRUE(mEngine.getLockoutTimerStarted());
-    std::this_thread::sleep_for(std::chrono::milliseconds(230));
+    std::this_thread::sleep_for(std::chrono::milliseconds(250));
     ASSERT_FALSE(mEngine.getLockoutTimerStarted());
     ASSERT_TRUE(mCallback->mLockoutCleared);
 }