fix

utils/util.js

@@ -220,10 +220,14 @@ const writeData = (data) => {
   value.push(0x00);
   value.push(data.length + 4);
   value = value.concat(data);
-  value.push(0xff);
-  value.push(0xff);
-  value.push(0xff);
-  value.push(0xff);
+  value.push(0xcd);
+  value.push(0x0e);
+  value.push(0x00);
+  value.push(0x04);
+  // value.push(0xff);
+  // value.push(0xff);
+  // value.push(0xff);
+  // value.push(0xff);
   return value;
 }