diff --git a/LFLiveKit.podspec b/LFLiveKit.podspec
index 9f5fc8f5..d9daa20c 100644
--- a/LFLiveKit.podspec
+++ b/LFLiveKit.podspec
@@ -2,7 +2,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "LFLiveKit"
-  s.version      = "2.7"
+  s.version      = "2.8"
   s.summary      = "LaiFeng ios Live. LFLiveKit."
   s.homepage     = "https://github.com/chenliming777"
   s.license      = { :type => "MIT", :file => "LICENSE" }
diff --git a/LFLiveKit/capture/LFVideoCapture.m b/LFLiveKit/capture/LFVideoCapture.m
index 214181be..113cf06d 100755
--- a/LFLiveKit/capture/LFVideoCapture.m
+++ b/LFLiveKit/capture/LFVideoCapture.m
@@ -72,11 +72,20 @@ - (void)dealloc {
 
 
 - (void) turnFlashLightOn{
-    [_videoCamera.inputCamera setTorchModeOnWithLevel:1.0   error:nil];
+      if(_videoCamera.inputCamera.hasTorch){
+          [_videoCamera.inputCamera lockForConfiguration:nil];
+             _videoCamera.inputCamera.torchMode = AVCaptureTorchModeOn;
+          [_videoCamera.inputCamera setTorchModeOnWithLevel:1.0   error:nil];
+          [_videoCamera.inputCamera unlockForConfiguration];
+      }
 }
 
 - (void) turnFlashLightOff{
-    [_videoCamera.inputCamera setTorchModeOnWithLevel:0   error:nil];
+    if(_videoCamera.inputCamera.hasTorch){
+        [_videoCamera.inputCamera lockForConfiguration:nil];
+        _videoCamera.inputCamera.torchMode = AVCaptureTorchModeOff;
+        [_videoCamera.inputCamera unlockForConfiguration];
+    }
 }
 #pragma mark -- Setter Getter