diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
index 50eb5747b..301f37b2f 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/CartonMeasurementService.java
@@ -147,7 +147,7 @@ public class CartonMeasurementService {
         if (inbound == null) {
             throw new BizException(ResultCode.NOT_FOUND, "入库单不存在");
         }
-        if (!DEVICE_WRITABLE_STATUSES.contains(inbound.getProcessStatus())) {
+        if (!deviceWritable(inbound, tenantId)) {
             throw new BizException(ResultCode.CONFLICT, "测量已提交，设备不能新增或覆盖数据");
         }
         InboundMeasurementItemEntity item = repository.findItemByBoxCode(tenantId, boxCode);
@@ -245,7 +245,6 @@ public class CartonMeasurementService {
         item.setTotalVolumeCbm(totalVolume);
         item.setVolumeWeightKg(totalVolume.multiply(VOLUME_WEIGHT_FACTOR).setScale(3, RoundingMode.CEILING));
         item.setCalculationRuleVersion(weighted.calculationRuleVersion());
-        item.setOverLimitWarning(weighted.warning());
         item.setOuterLengthCm(weighted.outerLengthCm());
         item.setOuterWidthCm(weighted.outerWidthCm());
         item.setOuterHeightCm(weighted.outerHeightCm());
@@ -306,12 +305,25 @@ public class CartonMeasurementService {
         if (inbound == null) {
             throw new BizException(ResultCode.NOT_FOUND, "入库单不存在");
         }
-        if (!DEVICE_WRITABLE_STATUSES.contains(inbound.getProcessStatus())) {
+        if (!deviceWritable(inbound, tenantId)) {
             throw new BizException(ResultCode.CONFLICT, "测量已提交，设备不能新增或覆盖数据");
         }
         return inbound;
     }
 
+    /**
+     * 设备回传门禁以入库流程状态为主，并用测量批次状态兜底校验提交语义。
+     * RECEIVED/DRAFT 只是设备资料，不能把处于 WAIT_MEASURE 的入库单误判为已提交；
+     * SUBMITTED/APPROVED 则必须继续保留设备覆盖保护，即使旧数据的主状态快照滞后。
+     */
+    private boolean deviceWritable(InboundOrderEntity inbound, long tenantId) {
+        if (!DEVICE_WRITABLE_STATUSES.contains(inbound.getProcessStatus())) {
+            return false;
+        }
+        InboundMeasurementEntity latest = repository.findLatestMeasurement(tenantId, inbound.getId());
+        return latest == null || !Set.of("SUBMITTED", "APPROVED").contains(latest.getStatus());
+    }
+
     private InboundOrderEntity requireManualCountEditableInbound(long tenantId, long inboundId) {
         InboundOrderEntity inbound = repository.findInbound(tenantId, inboundId);
         if (inbound == null) {
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/CartonMeasurementServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/CartonMeasurementServiceTest.java
index 3469dddb9..914af30f5 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/CartonMeasurementServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/CartonMeasurementServiceTest.java
@@ -113,7 +113,7 @@ class CartonMeasurementServiceTest {
     }
 
     @Test
-    void oversizeScanKeepsImageAndActualDimensionsForManualReview() {
+    void scanOutsideConfiguredWeightingRulesKeepsImageAndActualDimensions() {
         InboundMeasurementEntity measurement = measurement(30001L, "RECEIVED", 0);
         when(repository.findItemByBoxCode(10001L, "RK-001#5-1")).thenReturn(null);
         when(repository.findLatestEditableMeasurement(10001L, 70001L)).thenReturn(measurement);
@@ -131,8 +131,8 @@ class CartonMeasurementServiceTest {
         assertThat(insertedItem.get().getSourceImageFileId()).isEqualTo(99001L);
         assertThat(insertedItem.get().getLengthCm()).isEqualByComparingTo("60.100");
         assertThat(insertedItem.get().getCalculationRuleVersion())
-            .isEqualTo("ACTUAL_DIMENSION_OVERSIZE_V1");
-        assertThat(insertedItem.get().getOverLimitWarning()).contains("人工复核");
+            .isEqualTo("ACTUAL_DIMENSION_V1");
+        assertThat(insertedItem.get().getOverLimitWarning()).isNull();
         verify(images, never()).delete(any(), any(Long.TYPE), any(Long.TYPE), any(Long.TYPE), any(Long.TYPE));
     }
 
@@ -146,6 +146,31 @@ class CartonMeasurementServiceTest {
         verify(images, never()).upload(any(), any(Long.TYPE), any(Long.TYPE), any(Long.TYPE), any());
     }
 
+    @Test
+    void waitMeasureWithFrozenLabelsAndReceivedDeviceBatchAllowsFirstScan() {
+        InboundMeasurementEntity received = measurement(30001L, "RECEIVED", 0);
+        when(repository.findLatestMeasurement(10001L, 70001L)).thenReturn(received);
+        when(repository.findItemByBoxCode(10001L, "RK-001#5-1")).thenReturn(null);
+        when(repository.findLatestEditableMeasurement(10001L, 70001L)).thenReturn(received);
+        when(repository.listItems(10001L, 30001L)).thenAnswer(invocation -> List.of(insertedItem.get()));
+        when(repository.updateMeasurement(received)).thenReturn(true);
+
+        CartonMeasurementResult result = service.upsert(10001L, 90001L, command());
+
+        assertThat(result.created()).isTrue();
+        assertThat(result.confirmedPackageCount()).isEqualTo(1);
+    }
+
+    @Test
+    void staleWaitMeasureSnapshotStillRejectsWhenLatestBatchWasSubmitted() {
+        InboundMeasurementEntity submitted = measurement(30001L, "SUBMITTED", 1);
+        when(repository.findLatestMeasurement(10001L, 70001L)).thenReturn(submitted);
+
+        assertThatThrownBy(() -> service.upsert(10001L, 90001L, command()))
+            .isInstanceOf(BizException.class).hasMessageContaining("不能新增或覆盖");
+        verify(images, never()).upload(any(), any(Long.TYPE), any(Long.TYPE), any(Long.TYPE), any());
+    }
+
     @Test
     void platformSimulationRejectsBoxCodeFromAnotherInboundBeforeUploadingImage() {
         assertThatThrownBy(() -> service.upsertForInbound(10001L, 90001L, 70002L, command()))