diff --git a/app/src/main/java/com/example/hpostesting/data/constant/HemoCubeCommands.kt b/app/src/main/java/com/example/hpostesting/data/constant/HemoCubeCommands.kt
index 5edd02b..993b8fd 100644
--- a/app/src/main/java/com/example/hpostesting/data/constant/HemoCubeCommands.kt
+++ b/app/src/main/java/com/example/hpostesting/data/constant/HemoCubeCommands.kt
@@ -15,4 +15,5 @@ enum class HemoCubeCommands(val command: String) {
     SECOND_GAIN_COMMAND("U\r"),
     THIRD_GAIN_COMMAND("V\r"),
     FORTH_GAIN_COMMAND("W\r"),
+    CHECK_CUVETTE_COMMAND("L\r"),
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/hpostesting/data/constant/TestStatus.kt b/app/src/main/java/com/example/hpostesting/data/constant/TestStatus.kt
index f40e4ac..e969609 100644
--- a/app/src/main/java/com/example/hpostesting/data/constant/TestStatus.kt
+++ b/app/src/main/java/com/example/hpostesting/data/constant/TestStatus.kt
@@ -10,8 +10,10 @@ enum class TestStatus(val code: Double) {
     FIRST_EMPTY_AIR_READING_PRINT_COMPLETED(4.4),
     EPROM_ADC_RETRIEVAL_STARTED(4.5),
     EPROM_ADC_RETRIEVAL_COMPLETED(4.6),
-    BUFFER_STARTED(4.7),
-    BUFFER_COMPLETED(5.0),
+    CUVETTE_PRESENT(4.7),
+    CUVETTE_ABSENT(4.8),
+    BUFFER_STARTED(4.9),
+    BUFFER_COMPLETED(5.1),
     BUFFER_PRINT_STARTED(6.0),
     BUFFER_PRINT_COMPLETED(7.0),
     SAMPLE_STARTED(8.0),
diff --git a/app/src/main/java/com/example/hpostesting/presentation/hemocube/HemoCubeFragment.kt b/app/src/main/java/com/example/hpostesting/presentation/hemocube/HemoCubeFragment.kt
index e6ec86c..f49c346 100644
--- a/app/src/main/java/com/example/hpostesting/presentation/hemocube/HemoCubeFragment.kt
+++ b/app/src/main/java/com/example/hpostesting/presentation/hemocube/HemoCubeFragment.kt
@@ -90,6 +90,8 @@ class HemoCubeFragment : Fragment() {
         listenToHemoCube()
         getDeviceInfo()
         observeViewModel()
+
+        checkCuvettePresence()
     }
 
     @SuppressLint("SetTextI18n")
@@ -134,7 +136,8 @@ class HemoCubeFragment : Fragment() {
 //                    binding.tvSubtitle4.text = "Buffer Started"
                 }
 
-                checkAndStartProcess()
+              //  checkAndStartProcess()
+                startBufferProcess()
                 it.visibility = View.GONE
             }
         }
@@ -261,9 +264,9 @@ class HemoCubeFragment : Fragment() {
         currentResultData = ""
     }
 
-    private fun checkAndStartProcess() {
-        startBufferProcess()
-    }
+//    private fun checkAndStartProcess() {
+//        startBufferProcess()
+//    }
 
     private fun isBufferValueAvailable(): Boolean {
         return try {
@@ -418,9 +421,19 @@ class HemoCubeFragment : Fragment() {
             (resultData.contains("#RC") && this.testStatusCode < TestStatus.EPROM_ADC_RETRIEVAL_COMPLETED.code) -> {
                 this.testStatusCode = TestStatus.EPROM_ADC_RETRIEVAL_COMPLETED.code
                 hemoCubeViewModel.messages.postValue("EPROM ADC Loaded")
-                showStartBufferButton()
+
             }
 
+            resultData.contains("#CIN") && this.testStatusCode < TestStatus.CUVETTE_PRESENT.code -> {
+                hemoCubeViewModel.messages.postValue(getString(R.string.cuvette_present))
+                this.testStatusCode = TestStatus.CUVETTE_PRESENT.code
+                showStartBufferButton()
+            }
+            resultData.contains("#AIN") && this.testStatusCode < TestStatus.CUVETTE_ABSENT.code -> {
+                hemoCubeViewModel.messages.postValue(getString(R.string.cuvette_absent))
+                this.testStatusCode = TestStatus.CUVETTE_ABSENT.code
+
+            }
             resultData.contains("#BS") && this.testStatusCode < TestStatus.BUFFER_STARTED.code -> {
                 hemoCubeViewModel.messages.postValue(getString(R.string.buffer_started))
                 this.testStatusCode = TestStatus.BUFFER_STARTED.code
@@ -1138,6 +1151,18 @@ class HemoCubeFragment : Fragment() {
         Toast.makeText(requireContext(), getString(messageResId), Toast.LENGTH_SHORT).show()
     }
 
+    private fun checkCuvettePresence() {
+        hemoCubeViewModel.progressBar.postValue(true)
+
+        (activity as HemocubeActivity).mService.sendAndListenToHemoCube(HemoCubeCommands.CHECK_CUVETTE_COMMAND,
+            object : UsbServiceListener {
+                override fun onUsbRead(data: ByteArray?) {}
+
+                override fun onUsbError(e: Exception?) {
+                    hemoCubeViewModel.progressBar.postValue(false)
+                }
+            })
+    }
     private fun startBufferProcess() {
         hemoCubeViewModel.progressBar.postValue(true)
 
diff --git a/app/src/main/res/values-hi/strings.xml b/app/src/main/res/values-hi/strings.xml
index cb272ca..96a5a3f 100644
--- a/app/src/main/res/values-hi/strings.xml
+++ b/app/src/main/res/values-hi/strings.xml
@@ -272,4 +272,7 @@
 
     <string name="downloadcsv">सीएसवी डाउनलोड करें</string>
     <string name="action_activity">Activities</string>
+    <string name="check_cuvette">Checking cuvette presence</string>
+    <string name="cuvette_present">Cuvette present</string>
+    <string name="cuvette_absent">Cuvette absent</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-kn/strings.xml b/app/src/main/res/values-kn/strings.xml
index 4dc9455..61ec53e 100644
--- a/app/src/main/res/values-kn/strings.xml
+++ b/app/src/main/res/values-kn/strings.xml
@@ -271,6 +271,9 @@
     <string name="ok">ಸರಿ</string>
     <string name="downloadcsv">CSV ಡೌನ್ಲೋಡ್ ಮಾಡಿ</string>
     <string name="action_activity">Activities</string>
+    <string name="check_cuvette">Checking cuvette presence</string>
+    <string name="cuvette_present">Cuvette present</string>
+    <string name="cuvette_absent">Cuvette absent</string>
     <!-- Add translations for other strings -->
 
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cea96e3..fd522a2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -274,4 +274,7 @@
     <string name="app_language">App Language</string>
     <string name="ok">OK</string>
     <string name="action_activity">Activities</string>
+    <string name="check_cuvette">Checking cuvette presence</string>
+    <string name="cuvette_present">Cuvette present</string>
+    <string name="cuvette_absent">Cuvette absent</string>
 </resources>
\ No newline at end of file