diff --git a/ios/Classes/FlutterDownloaderPlugin.m b/ios/Classes/FlutterDownloaderPlugin.m
index 5c9df825..9f0d71b1 100644
--- a/ios/Classes/FlutterDownloaderPlugin.m
+++ b/ios/Classes/FlutterDownloaderPlugin.m
@@ -876,54 +876,63 @@ - (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTas
 
 - (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didFinishDownloadingToURL:(NSURL *)location
 {
+    
+    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) downloadTask.response;
+    long httpStatusCode = (long)[httpResponse statusCode];
+    
     if (debug) {
-        NSLog(@"URLSession:downloadTask:didFinishDownloadingToURL:");
+        NSLog(@"%s HTTP status code: %ld", __FUNCTION__, httpStatusCode);
     }
-
-    NSString *taskId = [self identifierForTask:downloadTask ofSession:session];
-    NSDictionary *task = [self loadTaskWithId:taskId];
-    NSURL *destinationURL = [self fileUrlOf:taskId taskInfo:task downloadTask:downloadTask];
-
-    [_runningTaskById removeObjectForKey:taskId];
-
-    NSError *error;
-    NSFileManager *fileManager = [NSFileManager defaultManager];
-
-    if ([fileManager fileExistsAtPath:[destinationURL path]]) {
-        [fileManager removeItemAtURL:destinationURL error:nil];
-    }
-
-    BOOL success = [fileManager copyItemAtURL:location
-                                        toURL:destinationURL
-                                        error:&error];
-
-    __typeof__(self) __weak weakSelf = self;
-    if (success) {
-        [self sendUpdateProgressForTaskId:taskId inStatus:@(STATUS_COMPLETE) andProgress:@100];
-        dispatch_sync(databaseQueue, ^{
-            [weakSelf updateTask:taskId status:STATUS_COMPLETE progress:100];
-        });
-    } else {
-        if (debug) {
-            NSLog(@"Unable to copy temp file. Error: %@", [error localizedDescription]);
+    
+    bool isSuccess = (httpStatusCode >= 200 && httpStatusCode < 300);
+    
+    if (isSuccess) {
+        NSString *taskId = [self identifierForTask:downloadTask ofSession:session];
+        NSDictionary *task = [self loadTaskWithId:taskId];
+        NSURL *destinationURL = [self fileUrlOf:taskId taskInfo:task downloadTask:downloadTask];
+        
+        [_runningTaskById removeObjectForKey:taskId];
+        
+        NSError *error;
+        NSFileManager *fileManager = [NSFileManager defaultManager];
+        
+        if ([fileManager fileExistsAtPath:[destinationURL path]]) {
+            [fileManager removeItemAtURL:destinationURL error:nil];
+        }
+        
+        BOOL success = [fileManager copyItemAtURL:location
+                                            toURL:destinationURL
+                                            error:&error];
+        
+        __typeof__(self) __weak weakSelf = self;
+        if (success) {
+            [self sendUpdateProgressForTaskId:taskId inStatus:@(STATUS_COMPLETE) andProgress:@100];
+            dispatch_sync(databaseQueue, ^{
+                [weakSelf updateTask:taskId status:STATUS_COMPLETE progress:100];
+            });
+        } else {
+            if (debug) {
+                NSLog(@"Unable to copy temp file. Error: %@", [error localizedDescription]);
+            }
+            [self sendUpdateProgressForTaskId:taskId inStatus:@(STATUS_FAILED) andProgress:@(-1)];
+            dispatch_sync(databaseQueue, ^{
+                [weakSelf updateTask:taskId status:STATUS_FAILED progress:-1];
+            });
         }
-        [self sendUpdateProgressForTaskId:taskId inStatus:@(STATUS_FAILED) andProgress:@(-1)];
-        dispatch_sync(databaseQueue, ^{
-            [weakSelf updateTask:taskId status:STATUS_FAILED progress:-1];
-        });
     }
+    
 }
 
 -(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
 {
-    if (debug) {
-        NSLog(@"URLSession:task:didCompleteWithError:");
-    }
+    
     NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) task.response;
     long httpStatusCode = (long)[httpResponse statusCode];
+    
     if (debug) {
-        NSLog(@"HTTP status code: %ld", httpStatusCode);
+        NSLog(@"%s HTTP status code: %ld", __FUNCTION__, httpStatusCode);
     }
+    
     bool isSuccess = (httpStatusCode >= 200 && httpStatusCode < 300);
     if (error != nil || !isSuccess) {
         if (debug) {