diff --git a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.c b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.c
index 6e4f7b5c22..a9d2269660 100644
--- a/MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.c
+++ b/MdeModulePkg/Application/UiApp/FrontPageCustomizedUi.c
@@ -16,8 +16,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/HiiConfigAccess.h>
 #include <Library/BaseLib.h>
 #include <Library/MemoryAllocationLib.h>
+#include "FrontPage.h"
 #include "FrontPageCustomizedUiSupport.h"
 
+extern FRONT_PAGE_CALLBACK_DATA  gFrontPagePrivate;
+
 /**
   Customize menus in the page.
 
@@ -129,4 +132,14 @@ UiCustomizeFrontPageBanner (
   IN OUT EFI_STRING     *BannerStr
   )
 {
+  if ((LineIndex == 5) && LeftOrRight) {
+    // Update STR_CUSTOMIZE_BANNER_LINE5_LEFT
+    if (PcdGetBool(PcdTestKeyUsed)) {
+      if (BannerStr != NULL) {
+        FreePool(*BannerStr);
+      }
+      *BannerStr = HiiGetString(gFrontPagePrivate.HiiHandle, STRING_TOKEN(STR_TEST_KEY_USED), NULL);
+    }
+  }
+  return;
 }
diff --git a/MdeModulePkg/Application/UiApp/FrontPageStrings.uni b/MdeModulePkg/Application/UiApp/FrontPageStrings.uni
index 71cb7887d1..8080a209a3 100644
--- a/MdeModulePkg/Application/UiApp/FrontPageStrings.uni
+++ b/MdeModulePkg/Application/UiApp/FrontPageStrings.uni
@@ -2,7 +2,7 @@
 //
 //  String definitions for BdsPlatform formset.
 //
-//  Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
+//  Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
 //  This program and the accompanying materials
 //  are licensed and made available under the terms and conditions of the BSD License
 //  which accompanies this distribution.  The full text of the license may be found at
@@ -68,5 +68,7 @@
                                          #language fr-FR  ""
 #string STR_CUSTOMIZE_BANNER_LINE5_RIGHT #language en-US  ""
                                          #language fr-FR  ""
+#string STR_TEST_KEY_USED                #language en-US  "WARNING: Test key detected."
+                                         #language fr-FR  "WARNING: Test key detected."
 #string STR_NULL_STRING                #language en-US  " "
                                        #language fr-FR  " "
diff --git a/MdeModulePkg/Application/UiApp/UiApp.inf b/MdeModulePkg/Application/UiApp/UiApp.inf
index 6df6e4739e..d144462ce4 100644
--- a/MdeModulePkg/Application/UiApp/UiApp.inf
+++ b/MdeModulePkg/Application/UiApp/UiApp.inf
@@ -1,7 +1,7 @@
 ## @file
 #  UiApp module is driver for BDS phase.
 #
-#  Copyright (c) 2011 - 2015, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>
 #  This program and the accompanying materials
 #  are licensed and made available under the terms and conditions of the BSD License
 #  which accompanies this distribution.  The full text of the license may be found at
@@ -82,6 +82,7 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoHorizontalResolution  ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdSetupVideoVerticalResolution    ## CONSUMES
   gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString           ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdTestKeyUsed                     ## CONSUMES
 
 [UserExtensions.TianoCore."ExtraFiles"]
   UiAppExtra.uni