diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java b/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
index b458d025..b303fce5 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
@@ -912,11 +912,24 @@ public class SimUtil {
                         filePath = value;
                     }
                 }
-                HashMap<String, String> hashMap = ValueTypeUtil.checkFilePathAndName(context, fileType);
-                filePath = hashMap.get(UpdateSysConfigUtil.FILEPATH);
-                fileName = hashMap.get(UpdateSysConfigUtil.FILENAME);
-                byte[] decode = Base64.decode(fileStr, Base64.NO_WRAP);
-                FilesUtils.writeFile(filePath + fileName, decode);
+                if (StringUtils.isNotEmpty(fileStr)) {
+                    if (StringUtils.isEmpty(filePath)) {
+                        HashMap<String, String> hashMap = ValueTypeUtil.checkFilePathAndName(context, fileType);
+                        filePath = hashMap.get(UpdateSysConfigUtil.FILEPATH);
+                        fileName = hashMap.get(UpdateSysConfigUtil.FILENAME);
+                        if (StringUtils.isEmpty(filePath) || StringUtils.isEmpty(fileName)) {
+                            ifmessageCorrect = false;
+                        } else {
+                            filePath += fileName;
+                        }
+                    }
+                    if (StringUtils.isNotEmpty(filePath)) {
+                        byte[] decode = Base64.decode(fileStr, Base64.NO_WRAP);
+                        FilesUtils.writeFile(filePath, decode);
+                    }
+                } else {
+                    ifmessageCorrect = false;
+                }
             }
         } catch (Exception ex) {
             ex.printStackTrace();