diff --git a/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java b/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
index 8e0b64f1..e2bc371e 100644
--- a/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
+++ b/sec-beidou/src/main/java/com/imdroid/beidou/controller/APIController.java
@@ -196,11 +196,13 @@ public class APIController extends BasicController{
     }
 
     void updateICCID(GnssDevice device,String dtuAck){
-        if(dtuAck.contains("2B49434349443A")){
+
+        if(!dtuAck.contains("2B49434349443A")){
             // “2B49434349443A” 是“ +ICCID: ”的十六进制数据串
             // 如果部署 ICCID 的信息，那么就不要做下面的处理
             return;
         }
+        System.out.println("APIController:"+dtuAck);
         String content = HexUtil.HexString2String(dtuAck);
         if(content.contains("+ICCID:")){
             System.out.println(content);