diff --git a/android/src/main/java/com/device/comm/mylibrary/NativeDevice/BleDynamicGlucose.java b/android/src/main/java/com/device/comm/mylibrary/NativeDevice/BleDynamicGlucose.java
index 1b57056..8ecf56f 100755
--- a/android/src/main/java/com/device/comm/mylibrary/NativeDevice/BleDynamicGlucose.java
+++ b/android/src/main/java/com/device/comm/mylibrary/NativeDevice/BleDynamicGlucose.java
@@ -402,8 +402,8 @@ public class BleDynamicGlucose extends BleNativeDevice{
                     RNLog.d(TAG,"Bt4Th-getRecord:" + rtn);
                     break;
                 case 14:
-                    if(response.getObjCode().getValue() == null){
-                        return;
+                    if (response.getObjCode() == null || response.getObjCode().getValue() == null){
+                      return;
                     }
 
                     RNLog.d(TAG,"Bt4Th-getMonitorStatus:" + response);