diff --git a/app/src/main/java/com/utsmm/kbz/MainFragment.java b/app/src/main/java/com/utsmm/kbz/MainFragment.java
index 01fe347..913b17b 100644
--- a/app/src/main/java/com/utsmm/kbz/MainFragment.java
+++ b/app/src/main/java/com/utsmm/kbz/MainFragment.java
@@ -148,6 +148,8 @@ public class MainFragment extends DataBindingFragment {
             NexGoSDK.getInstance().cancelCheckCard();
             NexGoSDK.getInstance().closeReader();
             disableHomeButton();
+            disableTaskButton();
+            BaseApplication.getInstance().deviceEngine.getPlatform().hideNavigationBar();
         });
     }
 
@@ -156,10 +158,22 @@ public class MainFragment extends DataBindingFragment {
         LogUtil.d(TAG,"Disable Home Button Result:"+result);
     }
 
+    private void disableTaskButton(){
+        int result = BaseApplication.getInstance().deviceEngine.getPlatform().disableTaskButton();
+        LogUtil.d(TAG,"Disable Task Button Result:"+result);
+    }
+
     private void enableHomeButton(){
         int result = BaseApplication.getInstance().deviceEngine.getPlatform().enableHomeButton();
         LogUtil.d(TAG,"Enable Home Button Result:"+result);
     }
+
+    private void enableTaskButton(){
+        int result = BaseApplication.getInstance().deviceEngine.getPlatform().enableTaskButton();
+        LogUtil.d(TAG,"Disable Task Button Result:"+result);
+    }
+
+
     private void checkTerminalStatus() {
         if (!SystemParamsOperation.getInstance().isActive()) {
             routeId = R.id.action_nav_main_to_disabledTerminalFragment;
@@ -210,6 +224,9 @@ public class MainFragment extends DataBindingFragment {
     @Override
     public void onPause() {
         super.onPause();
+        BaseApplication.getInstance().deviceEngine.getPlatform().showNavigationBar();
+        enableTaskButton();
+        enableHomeButton();
     }
 
     @Override
diff --git a/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java b/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
index c9a4e6c..1af53aa 100644
--- a/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
+++ b/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
@@ -259,7 +259,7 @@ public abstract class BaseXPrint {
         String receiptFooter = SystemParamsOperation.getInstance().getReceiptFooter();
         String finalVersion = SystemParamsOperation.getInstance().getFinalVersion();
         printer.appendPrnStr("***** MERCHANT COPY *****", fontNormal, AlignEnum.CENTER,false);
-        printer.appendPrnStr(finalVersion, fontNormal, AlignEnum.CENTER,false);
+//        printer.appendPrnStr(finalVersion, fontNormal, AlignEnum.CENTER,false);
         printer.appendPrnStr(receiptFooter, fontNormal, AlignEnum.CENTER,false);