diff --git a/android/build.gradle b/android/build.gradle
index 6ae1aa71..ab423365 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -44,10 +44,4 @@ dependencies {
     implementation 'com.facebook.react:react-native:+'
     // androidx:biometric now supports fingerprint back to Android v23
     implementation "androidx.biometric:biometric:1.1.0"
-
-    // retain fingerprintScanner lib for compat with Android v16-23 device-specific drivers (Samsung & MeiZu)
-    // 1.2.3 is the minimum version compatible with androidx.
-    // See https://github.com/uccmawei/FingerprintIdentify/issues/74
-    // (translation https://translate.google.com/translate?sl=zh-CN&tl=en&u=https://github.com/uccmawei/FingerprintIdentify/issues/74)
-    implementation "com.github.uccmawei:fingerprintidentify:${safeExtGet("fingerprintidentify", "1.2.6")}"
 }
diff --git a/android/src/main/java/com/hieuvp/fingerprint/ReactNativeFingerprintScannerModule.java b/android/src/main/java/com/hieuvp/fingerprint/ReactNativeFingerprintScannerModule.java
index 57364dcf..b6a2f171 100644
--- a/android/src/main/java/com/hieuvp/fingerprint/ReactNativeFingerprintScannerModule.java
+++ b/android/src/main/java/com/hieuvp/fingerprint/ReactNativeFingerprintScannerModule.java
@@ -20,13 +20,6 @@
 import com.facebook.react.module.annotations.ReactModule;
 import com.facebook.react.bridge.UiThreadUtil;
 
-// for Samsung/MeiZu compat, Android v16-23
-import com.facebook.react.modules.core.DeviceEventManagerModule.RCTDeviceEventEmitter;
-import com.wei.android.lib.fingerprintidentify.FingerprintIdentify;
-import com.wei.android.lib.fingerprintidentify.base.BaseFingerprint.ExceptionListener;
-import com.wei.android.lib.fingerprintidentify.base.BaseFingerprint.IdentifyListener;
-
-
 @ReactModule(name="ReactNativeFingerprintScanner")
 public class ReactNativeFingerprintScannerModule
         extends ReactContextBaseJavaModule
@@ -39,9 +32,6 @@ public class ReactNativeFingerprintScannerModule
     private final ReactApplicationContext mReactContext;
     private BiometricPrompt biometricPrompt;
 
-    // for Samsung/MeiZu compat, Android v16-23
-    private FingerprintIdentify mFingerprintIdentify;
-
     public ReactNativeFingerprintScannerModule(ReactApplicationContext reactContext) {
         super(reactContext);
         mReactContext = reactContext;
@@ -194,8 +184,10 @@ private String getSensorError() {
 
     @ReactMethod
     public void authenticate(String title, String subtitle, String description, String cancelButton, final Promise promise) {
-        if (requiresLegacyAuthentication()) {
-            legacyAuthenticate(promise);
+        if (false) {
+                promise.reject("legacy not supported", TYPE_BIOMETRICS);
+                ReactNativeFingerprintScannerModule.this.release();
+                return;
         }
         else {
             final String errorName = getSensorError();
@@ -211,11 +203,6 @@ public void authenticate(String title, String subtitle, String description, Stri
 
     @ReactMethod
     public synchronized void release() {
-        if (requiresLegacyAuthentication()) {
-            getFingerprintIdentify().cancelIdentify();
-            mFingerprintIdentify = null;
-        }
-
         // consistent across legacy and current API
         if (biometricPrompt != null) {
             biometricPrompt.cancelAuthentication();  // if release called from eg React
@@ -226,16 +213,6 @@ public synchronized void release() {
 
     @ReactMethod
     public void isSensorAvailable(final Promise promise) {
-        if (requiresLegacyAuthentication()) {
-            String errorMessage = legacyGetErrorMessage();
-            if (errorMessage != null) {
-                promise.reject(errorMessage, TYPE_FINGERPRINT_LEGACY);
-            } else {
-                promise.resolve(TYPE_FINGERPRINT_LEGACY);
-            }
-            return;
-        }
-
         // current API
         String errorName = getSensorError();
         if (errorName != null) {
@@ -244,83 +221,4 @@ public void isSensorAvailable(final Promise promise) {
             promise.resolve(TYPE_BIOMETRICS);
         }
     }
-
-
-    // for Samsung/MeiZu compat, Android v16-23
-    private FingerprintIdentify getFingerprintIdentify() {
-        if (mFingerprintIdentify != null) {
-            return mFingerprintIdentify;
-        }
-        mReactContext.addLifecycleEventListener(this);
-        mFingerprintIdentify = new FingerprintIdentify(mReactContext);
-        mFingerprintIdentify.setSupportAndroidL(true);
-        mFingerprintIdentify.setExceptionListener(
-            new ExceptionListener() {
-                @Override
-                public void onCatchException(Throwable exception) {
-                    mReactContext.removeLifecycleEventListener(ReactNativeFingerprintScannerModule.this);
-                }
-            }
-        );
-        mFingerprintIdentify.init();
-        return mFingerprintIdentify;
-    }
-
-    private String legacyGetErrorMessage() {
-        if (!getFingerprintIdentify().isHardwareEnable()) {
-            return "FingerprintScannerNotSupported";
-        } else if (!getFingerprintIdentify().isRegisteredFingerprint()) {
-            return "FingerprintScannerNotEnrolled";
-        } else if (!getFingerprintIdentify().isFingerprintEnable()) {
-            return "FingerprintScannerNotAvailable";
-        }
-
-        return null;
-    }
-
-
-    private void legacyAuthenticate(final Promise promise) {
-        final String errorMessage = legacyGetErrorMessage();
-        if (errorMessage != null) {
-            promise.reject(errorMessage, TYPE_FINGERPRINT_LEGACY);
-            ReactNativeFingerprintScannerModule.this.release();
-            return;
-        }
-
-        getFingerprintIdentify().resumeIdentify();
-        getFingerprintIdentify().startIdentify(MAX_AVAILABLE_TIMES, new IdentifyListener() {
-            @Override
-            public void onSucceed() {
-                promise.resolve(true);
-            }
-
-            @Override
-            public void onNotMatch(int availableTimes) {
-                if (availableTimes <= 0) {
-                    mReactContext.getJSModule(RCTDeviceEventEmitter.class)
-                            .emit("FINGERPRINT_SCANNER_AUTHENTICATION", "DeviceLocked");
-
-                } else {
-                    mReactContext.getJSModule(RCTDeviceEventEmitter.class)
-                            .emit("FINGERPRINT_SCANNER_AUTHENTICATION", "AuthenticationNotMatch");
-                }
-            }
-
-            @Override
-            public void onFailed(boolean isDeviceLocked) {
-                if(isDeviceLocked){
-                    promise.reject("AuthenticationFailed", "DeviceLocked");
-                } else {
-                    promise.reject("AuthenticationFailed", TYPE_FINGERPRINT_LEGACY);
-                }
-                ReactNativeFingerprintScannerModule.this.release();
-            }
-
-            @Override
-            public void onStartFailedByDeviceLocked() {
-                // the first start failed because the device was locked temporarily
-                promise.reject("AuthenticationFailed", "DeviceLocked");
-            }
-        });
-    }
 }