diff --git a/star_lock/lib/main/lockDetail/lockSet/lockEscalation/lockEscalation_logic.dart b/star_lock/lib/main/lockDetail/lockSet/lockEscalation/lockEscalation_logic.dart
index 249c884c..6203045a 100644
--- a/star_lock/lib/main/lockDetail/lockSet/lockEscalation/lockEscalation_logic.dart
+++ b/star_lock/lib/main/lockDetail/lockSet/lockEscalation/lockEscalation_logic.dart
@@ -161,24 +161,52 @@ class LockEscalationLogic extends BaseGetXController {
 
 // 检查文件头
   Future<Map?> getHeadFile(Uint8List data) async {
+    if (data.length <= 16) {
+      showToast('错误D固件，请选择正确的文件');
+      return null;
+    }
     // 检查文件头
-    String header = utf8.decode(data.sublist(0, 12));
+    String header;
+    try {
+      header = utf8.decode(data.sublist(0, 12));
+    } catch (e) {
+      showToast('非SYD固件，请选择正确的文件');
+      return null;
+    }
     if (header != 'SYD-BIN-DATA') {
       showToast('非SYD固件，请选择正确的文件');
       return null;
     }
     // 解析元数据长度
-    Uint8List metaLenList = data.sublist(12, 16);
-    int metaLen = ByteData.sublistView(metaLenList).getUint32(0);
+    Uint8List metaLenList;
+    int metaLen;
+    try {
+      metaLenList = data.sublist(12, 16);
+      metaLen = ByteData.sublistView(metaLenList).getUint32(0);
+    } catch (e) {
+      showToast('文件校验失败 0x01');
+      return null;
+    }
     if (metaLen < 2 || metaLen > 10240) {
       showToast('文件校验失败 0x01');
       return null;
     }
     // 读取和解析元数据
-    Uint8List metaStrList = data.sublist(16, 16 + metaLen);
-    String metaStr = utf8.decode(metaStrList);
+    Uint8List metaStrList;
+    String metaStr;
+    try {
+      metaStrList = data.sublist(16, 16 + metaLen);
+      metaStr = utf8.decode(metaStrList);
+    } catch (e) {
+      showToast('解析元数据失败，请选择正确的文件');
+      return null;
+    }
     AppLog.log(metaStr);
     var meta = jsonDecode(metaStr);
+    if (meta is! Map) {
+      showToast('解析元数据失败，请选择正确的文件');
+      return null;
+    }
     return meta..['metaLen'] = metaLen;
   }