diff --git a/ShadowsocksX-NG/AppDelegate.swift b/ShadowsocksX-NG/AppDelegate.swift
index 00e5665..a56fca0 100755
--- a/ShadowsocksX-NG/AppDelegate.swift
+++ b/ShadowsocksX-NG/AppDelegate.swift
@@ -116,7 +116,6 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDele
         
         _ = notifyCenter.rx.notification(NOTIFY_CONF_CHANGED)
             .subscribe(onNext: { noti in
-                SyncSSLocal()
                 self.applyConfig()
                 self.updateCopyHttpProxyExportMenu()
             })
diff --git a/ShadowsocksX-NG/LaunchAgentUtils.swift b/ShadowsocksX-NG/LaunchAgentUtils.swift
index 04124aa..00051e6 100644
--- a/ShadowsocksX-NG/LaunchAgentUtils.swift
+++ b/ShadowsocksX-NG/LaunchAgentUtils.swift
@@ -70,8 +70,10 @@ func generateSSLocalLauchAgentPlist() -> Bool {
     dict.write(toFile: plistFilepath, atomically: true)
     let Sha1Sum = getFileSHA1Sum(plistFilepath)
     if oldSha1Sum != Sha1Sum {
+        NSLog("generateSSLocalLauchAgentPlist - File has been changed.")
         return true
     } else {
+        NSLog("generateSSLocalLauchAgentPlist - File has not been changed.")
         return false
     }
 }
@@ -125,12 +127,14 @@ func writeSSLocalConfFile(_ conf:[String:AnyObject]) -> Bool {
         
         let oldSum = getFileSHA1Sum(filepath)
         try data.write(to: URL(fileURLWithPath: filepath), options: .atomic)
-        let newSum = getFileSHA1Sum(filepath)
+        let newSum = data.sha1()
         
         if oldSum == newSum {
+            NSLog("writeSSLocalConfFile - File has not been changed.")
             return false
         }
         
+        NSLog("writeSSLocalConfFile - File has been changed.")
         return true
     } catch {
         NSLog("Write ss-local file failed.")
diff --git a/ShadowsocksX-NG/ServerProfileManager.swift b/ShadowsocksX-NG/ServerProfileManager.swift
index e06ea00..8eb733c 100644
--- a/ShadowsocksX-NG/ServerProfileManager.swift
+++ b/ShadowsocksX-NG/ServerProfileManager.swift
@@ -48,14 +48,6 @@ class ServerProfileManager: NSObject {
         if getActiveProfile() == nil {
             activeProfileId = nil
         }
-        
-        if activeProfileId != nil {
-            defaults.set(activeProfileId, forKey: "ActiveServerProfileId")
-            _ = writeSSLocalConfFile((getActiveProfile()?.toJsonConfig())!)
-        } else {
-            defaults.removeObject(forKey: "ActiveServerProfileId")
-            removeSSLocalConfFile()
-        }
     }
     
     func getActiveProfile() -> ServerProfile? {