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 7128812..ffbdea5 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
@@ -353,11 +353,18 @@ class HemoCubeFragment : Fragment() {
                 testingTrace.stop()
             }
 
+            resultData.contains("ovf") -> {
+                hemoCubeViewModel.messages.postValue(
+                    getString(R.string.power_bank)
+                )
+            }
+
             resultData.contains("REND") && this.testStatusCode < Constants.TEST_STATUS_CODE_SAMPLE_PRINT_COMPLETED -> {
                 this.testStatusCode = Constants.TEST_STATUS_CODE_SAMPLE_PRINT_COMPLETED
                 hemoCubeViewModel.messages.postValue(
                     getString(R.string.data_collected_processing_data)
                 )
+
                 val resultLines = resultData.split("\\s+(?=LB|LS)".toRegex())
                 var bufferIntensity = resultLines[1].split(' ')[1].trim()
                 led1BufferForDevice = if (isUsingExistingBuffer) {
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 47fd564..f6ce9b0 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -252,6 +252,7 @@
     <string name="sample_started">Sample Started</string>
     <string name="buffer_completed">Buffer Completed</string>
     <string name="buffer_started">Buffer Started</string>
+    <string name="power_bank">Connect with Power Bank</string>
     <string name="start">Start</string>
     <string name="place_sample">Place Sample</string>
     <string name="invalid">Invalid</string>