diff --git a/src/main/scala/com/github/shadowsocks/ScannerActivity.scala b/src/main/scala/com/github/shadowsocks/ScannerActivity.scala
index e3f24f9e..1bd55d1b 100644
--- a/src/main/scala/com/github/shadowsocks/ScannerActivity.scala
+++ b/src/main/scala/com/github/shadowsocks/ScannerActivity.scala
@@ -50,9 +50,6 @@ class ScannerActivity extends AppCompatActivity with ZXingScannerView.ResultHand
     setupToolbar()
 
     scannerView = new ZXingScannerView(this)
-    scannerView.setAutoFocus(false)
-    scannerView.setFlash(false)
-
     val contentFrame = findViewById(R.id.content_frame).asInstanceOf[ViewGroup]
     contentFrame.addView(scannerView)
   }