diff --git a/DJIDebuger/DJIDRootViewController.m b/DJIDebuger/DJIDRootViewController.m
index 2604a74..2f47c6e 100644
--- a/DJIDebuger/DJIDRootViewController.m
+++ b/DJIDebuger/DJIDRootViewController.m
@@ -25,8 +25,6 @@
 
 @interface DJIDRootViewController ()<DJISDKDebugServerDelegate>
 
-@property (assign,nonatomic) pthread_mutex_t serviceMutex;
-
 // UI
 @property (weak,nonatomic) IBOutlet UILabel* debugIdLabel;
 @property (weak,nonatomic) IBOutlet UILabel* debugTitleLabel;
@@ -52,8 +50,6 @@ - (void) updateIPAddress:(NSString*) ipaddress {
 - (void)viewDidLoad {
     [super viewDidLoad];
     
-    pthread_mutex_init(&_serviceMutex, NULL);
-    
     [self initUI];
     
     weakSelf(target);
@@ -70,11 +66,6 @@ - (UIStatusBarStyle) preferredStatusBarStyle {
     return UIStatusBarStyleLightContent;
 }
 
--(void) dealloc
-{
-    pthread_mutex_destroy(&_serviceMutex);
-}
-
 -(void) viewWillAppear:(BOOL)animated
 {
     [super viewWillAppear:animated];