diff --git a/app/src/main/java/xtr/keymapper/Server.java b/app/src/main/java/xtr/keymapper/Server.java
index 70d7e1d1..3f887ea2 100644
--- a/app/src/main/java/xtr/keymapper/Server.java
+++ b/app/src/main/java/xtr/keymapper/Server.java
@@ -32,7 +32,7 @@ private static void writeScript(StringBuffer linesToWrite, File scriptFile) thro
                 fileWriter.write(linesToWrite.toString());
             }
         } else {
-            if (linesToWrite.toString().equals(target.toString()))
+            if (!linesToWrite.toString().equals(target.toString()))
                 fileWriter.write(linesToWrite.toString());
         }
         fileWriter.close();
diff --git a/app/src/main/java/xtr/keymapper/activity/MainActivity.java b/app/src/main/java/xtr/keymapper/activity/MainActivity.java
index 787a3b41..9d459fb9 100644
--- a/app/src/main/java/xtr/keymapper/activity/MainActivity.java
+++ b/app/src/main/java/xtr/keymapper/activity/MainActivity.java
@@ -102,8 +102,11 @@ public void startPointer(){
             setButtonState(false);
             requestNotificationPermission();
         }
-        if (!RemoteServiceHelper.isRootService)
+        if (RemoteServiceHelper.useShizuku) {
+            if (!Shizuku.pingBinder()) alertShizukuNotAuthorized();
+        } else if (!RemoteServiceHelper.isRootService) {
             alertRootAccessAndExit();
+        }
     }
 
     private void setButtonState(boolean start) {