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 4ad3445..14fcc58 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
@@ -1935,11 +1935,11 @@ private fun computePlacementGuide(
             }
             // Edge 비대칭 — ch3 짧음 (센서 너무 아래) → 위로 미세 조정
             !edgePass && edgeAsym > 0 -> {
-                adjustHint = "Slide up slightly ↑  (ch3 short)"; adjustIcon = "arrow.up"
+                adjustHint = "Slide up slightly ↑"; adjustIcon = "arrow.up"
             }
             // Edge 비대칭 — ch0 짧음 (센서 너무 위) → 아래로 미세 조정
             !edgePass && edgeAsym < 0 -> {
-                adjustHint = "Slide down slightly ↓  (ch0 short)"; adjustIcon = "arrow.down"
+                adjustHint = "Slide down slightly ↓"; adjustIcon = "arrow.down"
             }
             gradient > 0.3 -> {
                 adjustHint = "Slide down ↓"; adjustIcon = "arrow.down"
@@ -1966,8 +1966,11 @@ private fun computePlacementGuide(
                 }
             }
         }
-        // 구체적 방향(↑↓←→)이면 VERTICAL 복귀, 아니면 GREEN 유지
-        val stayGreen = adjustIcon == "checkmark.circle"
+        // 구체적 방향(↑↓←→)이면 보통 VERTICAL 복귀, 아니면 GREEN 유지.
+        // 단 edge 만 fail(CV·lr 통과)인 케이스는 mm 단위 미세조정이라
+        // GREEN 그대로 유지 — step indicator 3 → 1 회귀 방지.
+        val edgeOnlyFail = !edgePass && cv <= cvThr && lrPass && rPeakOk
+        val stayGreen = adjustIcon == "checkmark.circle" || edgeOnlyFail
         val nextPh = if (stayGreen) PlacementPhase.GREEN else PlacementPhase.VERTICAL
         return PlacementGuideResult(adjustHint, adjustIcon, 50, cv, false, lrDev, lrPass,
             phase = PlacementPhase.GREEN, nextPhase = nextPh)