diff --git a/app/src/main/kotlin/bums/lunatic/launcher/home/SystemStatusFragment.kt b/app/src/main/kotlin/bums/lunatic/launcher/home/SystemStatusFragment.kt
index 2a9bd991..8f2b85c2 100644
--- a/app/src/main/kotlin/bums/lunatic/launcher/home/SystemStatusFragment.kt
+++ b/app/src/main/kotlin/bums/lunatic/launcher/home/SystemStatusFragment.kt
@@ -184,7 +184,7 @@ class SystemStatusFragment : Fragment() {
         cameraManager = requireContext().getSystemService(Context.CAMERA_SERVICE) as android.hardware.camera2.CameraManager
 
         binding.btnQuickFlash.setOnClickListener {
-           toggleFlashlight()
+            toggleFlashlight()
         }
         binding.btnQuickFlash.setOnLongClickListener {
             toggleFlashlight(120)
@@ -256,66 +256,71 @@ class SystemStatusFragment : Fragment() {
     private fun allPermissionsGranted() = androidx.core.content.ContextCompat.checkSelfPermission(
         requireContext(), CAMERA_PERMISSION) == android.content.pm.PackageManager.PERMISSION_GRANTED
 
+    private var mirrorDialog: android.app.Dialog? = null // 멤버 변수로 선언
+
     private fun showMirrorDialog() {
-        val dialog = android.app.Dialog(requireContext(), android.R.style.Theme_Black_NoTitleBar_Fullscreen)
+        mirrorDialog = android.app.Dialog(requireContext(), android.R.style.Theme_Black_NoTitleBar_Fullscreen)
+        mirrorDialog?.let { mirrorDialog ->
 
-        // 레이아웃 구성을 위한 FrameLayout 생성
-        val frameLayout = android.widget.FrameLayout(requireContext())
-        val previewView = androidx.camera.view.PreviewView(requireContext())
 
-        // 타이머용 TextView 생성
-        val timerText = TextView(requireContext()).apply {
-            setTextColor(Color.WHITE)
-            setTextSize(TypedValue.COMPLEX_UNIT_SP, 18f)
-            setBackgroundColor(Color.parseColor("#88000000")) // 반투명 배경
-            setPadding(32, 16, 32, 16)
-            gravity = android.view.Gravity.CENTER
-        }
+            // 레이아웃 구성을 위한 FrameLayout 생성
+            val frameLayout = android.widget.FrameLayout(requireContext())
+            val previewView = androidx.camera.view.PreviewView(requireContext())
 
-        val params = android.widget.FrameLayout.LayoutParams(
-            android.widget.FrameLayout.LayoutParams.WRAP_CONTENT,
-            android.widget.FrameLayout.LayoutParams.WRAP_CONTENT
-        ).apply {
-            gravity = android.view.Gravity.TOP or android.view.Gravity.CENTER_HORIZONTAL
-            topMargin = 100
-        }
-
-        frameLayout.addView(previewView)
-        frameLayout.addView(timerText, params)
-        dialog.setContentView(frameLayout)
-
-        val cameraProviderFuture = androidx.camera.lifecycle.ProcessCameraProvider.getInstance(requireContext())
-
-        cameraProviderFuture.addListener({
-            val cameraProvider = cameraProviderFuture.get()
-            val preview = androidx.camera.core.Preview.Builder().build()
-
-            // 전면 카메라 선택
-            val cameraSelector = androidx.camera.core.CameraSelector.DEFAULT_FRONT_CAMERA
-
-            try {
-                cameraProvider.unbindAll()
-                // 이 다이얼로그의 LifecycleOwner를 Fragment로 지정
-                cameraProvider.bindToLifecycle(this, cameraSelector, preview)
-                preview.setSurfaceProvider(previewView.surfaceProvider)
-            } catch (e: Exception) {
-                Blog.LOGE("거울 실행 실패: ${e.message}")
+            // 타이머용 TextView 생성
+            val timerText = TextView(requireContext()).apply {
+                setTextColor(Color.WHITE)
+                setTextSize(TypedValue.COMPLEX_UNIT_SP, 18f)
+                setBackgroundColor(Color.parseColor("#88000000")) // 반투명 배경
+                setPadding(32, 16, 32, 16)
+                gravity = android.view.Gravity.CENTER
             }
-        }, androidx.core.content.ContextCompat.getMainExecutor(requireContext()))
-        CoroutineScope(Dispatchers.Main).launch {
-            for (i in 30 downTo 1) {
-                if (!dialog.isShowing) break
-                timerText.text = "거울 모드 종료까지 $i" + "초"
-                delay(1000L)
+
+            val params = android.widget.FrameLayout.LayoutParams(
+                android.widget.FrameLayout.LayoutParams.WRAP_CONTENT,
+                android.widget.FrameLayout.LayoutParams.WRAP_CONTENT
+            ).apply {
+                gravity = android.view.Gravity.TOP or android.view.Gravity.CENTER_HORIZONTAL
+                topMargin = 100
             }
-            if (dialog.isShowing) {
-                dialog.dismiss()
-                context?.toast("배터리 절약을 위해 거울을 껐습니다.")
+
+            frameLayout.addView(previewView)
+            frameLayout.addView(timerText, params)
+            mirrorDialog?.setContentView(frameLayout)
+
+            val cameraProviderFuture = androidx.camera.lifecycle.ProcessCameraProvider.getInstance(requireContext())
+
+            cameraProviderFuture.addListener({
+                val cameraProvider = cameraProviderFuture.get()
+                val preview = androidx.camera.core.Preview.Builder().build()
+
+                // 전면 카메라 선택
+                val cameraSelector = androidx.camera.core.CameraSelector.DEFAULT_FRONT_CAMERA
+
+                try {
+                    cameraProvider.unbindAll()
+                    // 이 다이얼로그의 LifecycleOwner를 Fragment로 지정
+                    cameraProvider.bindToLifecycle(this, cameraSelector, preview)
+                    preview.setSurfaceProvider(previewView.surfaceProvider)
+                } catch (e: Exception) {
+                    Blog.LOGE("거울 실행 실패: ${e.message}")
+                }
+            }, androidx.core.content.ContextCompat.getMainExecutor(requireContext()))
+            CoroutineScope(Dispatchers.Main).launch {
+                for (i in 30 downTo 1) {
+                    if (!mirrorDialog.isShowing) break
+                    timerText.text = "거울 모드 종료까지 $i" + "초"
+                    delay(1000L)
+                }
+                if (mirrorDialog.isShowing == true) {
+                    mirrorDialog.dismiss()
+                    context?.toast("배터리 절약을 위해 거울을 껐습니다.")
+                }
             }
+            // 화면 터치 시 종료
+            previewView.setOnClickListener { mirrorDialog?.dismiss() }
+            mirrorDialog?.show()
         }
-        // 화면 터치 시 종료
-        previewView.setOnClickListener { dialog.dismiss() }
-        dialog.show()
     }
 
     private fun updateQuickControlUI() {
@@ -337,6 +342,22 @@ class SystemStatusFragment : Fragment() {
     override fun onHiddenChanged(hidden: Boolean) {
         super.onHiddenChanged(hidden)
         if (hidden) {
+            if (isFlashOn) {
+                isFlashOn = false
+                try {
+                    cameraManager.setTorchMode(cameraManager.cameraIdList[0], false)
+                    binding.btnQuickFlash.text = "🔦 조명"
+                    binding.btnQuickFlash.setTextColor(Color.WHITE)
+                } catch (e: Exception) { e.printStackTrace() }
+            }
+            flashTimerJob?.cancel()
+
+            // 2. 거울 다이얼로그 닫기 (카메라 자원 해제)
+            mirrorDialog?.let {
+                if (it.isShowing) it.dismiss()
+            }
+            mirrorDialog = null
+
             stopMonitoring()
         } else {
             resetNetworkCounters()
@@ -348,7 +369,7 @@ class SystemStatusFragment : Fragment() {
 
     override fun onPause() {
         super.onPause()
-        stopMonitoring()
+        onHiddenChanged(true)
     }
 
     override fun onResume() {