diff --git a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
index 5c2dbc8..e067388 100644
--- a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
+++ b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
@@ -379,6 +379,17 @@ fun PiezoMonitoringView(appState: AppState) {
     fun stopAutoMeasure() {
         isAutoMeasuring = false
         autoTickCount = 0
+        // 종료 시 최종 trimmed mean 반영
+        if (autoVolumeWindow.size >= 3) {
+            val finalVol = trimmedMean(autoVolumeWindow.toList())
+            lastVolumeMl = finalVol
+            maxVolumeMl = maxOf(maxVolumeMl, finalVol)
+            val maxVol = appState.piezoSettings.maxVolume.toDouble()
+            val pct = if (maxVol > 0) (finalVol / maxVol).coerceAtMost(1.0) else 0.0
+            val level = (pct * BladderLevel.MAX_LEVEL).toInt().coerceIn(1, BladderLevel.MAX_LEVEL)
+            appState.bladderLevel = appState.bladderLevel.copy(currentLevel = level)
+            Log.d("PiezoMonitor", "AUTO STOP finalTrimmedMean=${"%.1f".format(finalVol)}ml from ${autoVolumeWindow.size} samples")
+        }
         autoVolumeWindow.clear()
     }
 
diff --git a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PlacementGuideView.kt b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PlacementGuideView.kt
index 488108d..b0908b1 100644
--- a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PlacementGuideView.kt
+++ b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PlacementGuideView.kt
@@ -1286,9 +1286,9 @@ private fun computePlacementGuide(
         val ch4det = detected.getOrElse(4) { false }
         val ch5det = detected.getOrElse(5) { false }
 
-        // 상하 유지 확인 — gradient 재계산
+        // 상하 유지 확인 — 좌우 이동 중 center 채널 소실
         if (centerDetected < 2) {
-            return PlacementGuideResult("Readjust vertically", "arrow.up", 20,
+            return PlacementGuideResult("Start over from above the pubic bone", "arrow.up", 10,
                 phase = PlacementPhase.LATERAL, nextPhase = PlacementPhase.VERTICAL)
         }
 
@@ -1375,7 +1375,7 @@ private fun computePlacementGuide(
     }
 
     if (depths.size < 2) {
-        return PlacementGuideResult("Readjust position", "exclamationmark.triangle", 30,
+        return PlacementGuideResult("Start over from above the pubic bone", "arrow.up", 10,
             phase = PlacementPhase.GREEN, nextPhase = PlacementPhase.VERTICAL)
     }