diff --git a/README.md b/README.md
index 568f60af..97de6bac 100644
--- a/README.md
+++ b/README.md
@@ -79,6 +79,11 @@ iOS and Android differ slightly in their TouchID authentication.
 
 On Android you can customize the title and color of the pop-up by passing in the **optional config object** with a color and title key to the `authenticate` method. Even if you pass in the config object, iOS **does not** allow you change the color nor the title of the pop-up. iOS does support `passcodeFallback` as an option, which when set to `true` will allow users to use their device pin - useful for people with Face / Touch ID disabled. Passcode fallback only happens if the device does not have touch id or face id enabled.
 
+### passcodeFallback will be enabled after face ID fails ( only in iOS )
+
+Now, I have added the `passcodeFallback` after the face ID fails. So if user fail to login via faceID or Touch ID than it will give
+one option for enter passcode. previoously it was giving error but now it is working. so user can enter the device PIN and it will give the success response
+
 Error handling is also different between the platforms, with iOS currently providing much more descriptive error codes.
 
 ### App Permissions
diff --git a/TouchID.m b/TouchID.m
index 6bae6c9f..60f3d86d 100644
--- a/TouchID.m
+++ b/TouchID.m
@@ -13,16 +13,19 @@ @implementation TouchID
     NSError *error;
     
     // Check to see if we have a passcode fallback
-    NSNumber *passcodeFallback = [NSNumber numberWithBool:true];
+   // NSNumber *passcodeFallback = [NSNumber numberWithBool:true];
+     Boolean passcodeFallback = false;
+     
     if (RCTNilIfNull([options objectForKey:@"passcodeFallback"]) != nil) {
-        passcodeFallback = [RCTConvert NSNumber:options[@"passcodeFallback"]];
+        // passcodeFallback = [RCTConvert NSNumber:options[@"passcodeFallback"]];
+         passcodeFallback = [[RCTConvert NSNumber:options[@"passcodeFallback"]] boolValue];
     }
     
-    if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
-        
+    //Added condition to check when only touchID
+      if (!passcodeFallback && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
         // No error found, proceed
         callback(@[[NSNull null], [self getBiometryType:context]]);
-    } else if ([passcodeFallback boolValue] && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:&error]) {
+      }else if (passcodeFallback && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:&error]) { // removed the conversion to boolValue
         
         // No error
         callback(@[[NSNull null], [self getBiometryType:context]]);
@@ -46,7 +49,8 @@ @implementation TouchID
                   options:(NSDictionary *)options
                   callback: (RCTResponseSenderBlock)callback)
 {
-    NSNumber *passcodeFallback = [NSNumber numberWithBool:false];
+    //NSNumber *passcodeFallback = [NSNumber numberWithBool:false];
+     Boolean passcodeFallback = false;
     LAContext *context = [[LAContext alloc] init];
     NSError *error;
 
@@ -56,11 +60,12 @@ @implementation TouchID
     }
 
     if (RCTNilIfNull([options objectForKey:@"passcodeFallback"]) != nil) {
-        passcodeFallback = [RCTConvert NSNumber:options[@"passcodeFallback"]];
+        //passcodeFallback = [RCTConvert NSNumber:options[@"passcodeFallback"]];
+        passcodeFallback = [[RCTConvert NSNumber:options[@"passcodeFallback"]] boolValue];
     }
 
     // Device has TouchID
-    if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
+    if (!passcodeFallback && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
         // Attempt Authentification
         [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics
                 localizedReason:reason
@@ -69,8 +74,8 @@ @implementation TouchID
              [self handleAttemptToUseDeviceIDWithSuccess:success error:error callback:callback];
          }];
 
-        // Device does not support TouchID but user wishes to use passcode fallback
-    } else if ([passcodeFallback boolValue] && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:&error]) {
+        // Device does  support TouchID but user wishes to use passcode fallback
+    } else if (passcodeFallback  && [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:&error]) {
         // Attempt Authentification
         [context evaluatePolicy:LAPolicyDeviceOwnerAuthentication
                 localizedReason:reason