Index: firmware/App/Modes/ModeInitPOST.c
===================================================================
diff -u -rbaa9fb9bb10eed6cd211abaa80e9f9acffdeb20d -rfc12876da6930c955864352182aee2076513a1cc
--- firmware/App/Modes/ModeInitPOST.c	(.../ModeInitPOST.c)	(revision baa9fb9bb10eed6cd211abaa80e9f9acffdeb20d)
+++ firmware/App/Modes/ModeInitPOST.c	(.../ModeInitPOST.c)	(revision fc12876da6930c955864352182aee2076513a1cc)
@@ -47,18 +47,20 @@
 
 // ********** private data **********
 
-static HD_POST_STATE_T postState;                           ///< Current state of initialize and POST mode.
-static BOOL postCompleted;                                  ///< Flag indicates whether POST is completed.
-static BOOL postPassed;                                     ///< Flag indicates all POST tests passed.
-static BOOL tempPOSTPassed;                                 ///< Flag indicates all POST tests have passed so far.
+static HD_POST_STATE_T postState;                               ///< Current state of initialize and POST mode.
+static BOOL postCompleted;                                      ///< Flag indicates whether POST is completed.
+static BOOL postPassed;                                         ///< Flag indicates all POST tests passed.
+static BOOL tempPOSTPassed;                                     ///< Flag indicates all POST tests have passed so far.
 
-static BOOL uiPOSTPassed;                                   ///< Final result for UI POST tests (TRUE = passed, FALSE = failed).
-static BOOL dgPOSTPassed;                                   ///< Final result for DG POST tests (TRUE = passed, FALSE = failed).
-static BOOL uiPOSTResultReceived;                           ///< Have we received a final POST result from the UI?
-static BOOL dgPOSTResultReceived;                           ///< Have we received a final POST result from the DG?
-static U32  waitForUIPostTimerCtr;                          ///< Timer counter to limit wait for UI final POST result.
+static BOOL uiPOSTPassed;                                       ///< Final result for UI POST tests (TRUE = passed, FALSE = failed).
+static BOOL dgPOSTPassed;                                       ///< Final result for DG POST tests (TRUE = passed, FALSE = failed).
+static BOOL uiPOSTResultReceived;                               ///< Have we received a final POST result from the UI?
+static BOOL dgPOSTResultReceived;                               ///< Have we received a final POST result from the DG?
+static U32  waitForUIPostTimerCtr;                              ///< Timer counter to limit wait for UI final POST result.
+static U32  postCompleteDelayTimerCtr;                          ///< Timer counter for 2 second delay after POST completes and before transitioning to Standbymode.
 
-static U32  postCompleteDelayTimerCtr;                      ///< Timer counter for 2 second delay after POST completes and before transitioning to Standbymode.
+static UI_VERSIONS_T uiVersion = { 0, 0, 0, 0, 0 };             ///< Version and compatibility information reported by UI.
+static DG_VERSIONS_T dgVersion = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }; ///< Version and compatibility information reported by DG.
 
 // ********** private function prototypes **********
 
@@ -292,6 +294,32 @@
 
 /*********************************************************************//**
  * @brief
+ * The signalUIVersion function records the reported UI version information.
+ * @details Inputs: none
+ * @details Outputs: uiVersion
+ * @param version Version information reported by UI
+ * @return none
+ *************************************************************************/
+void signalUIVersion( UI_VERSIONS_T version )
+{
+    uiVersion = version;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The signalDGVersion function records the reported DG version information.
+ * @details Inputs: none
+ * @details Outputs: dgVersion
+ * @param version Version information reported by DG
+ * @return none
+ *************************************************************************/
+void signalDGVersion( DG_VERSIONS_T version )
+{
+    dgVersion = version;
+}
+
+/*********************************************************************//**
+ * @brief
  * The isPOSTCompleted function determines whether all HD POST have
  * been run and completed.  If true, call the isPOSTPassed() to see final
  * result (pass/fail).
@@ -366,8 +394,11 @@
 {
     SELF_TEST_STATUS_T result = SELF_TEST_STATUS_PASSED;
 
-    // TODO - implement (need UI to include its version/compatibility info in its request for f/w versions so we can check compatibility)
-    //SW_COMPATIBILITY_REV
+    if ( uiVersion.compatibility != SW_COMPATIBILITY_REV )
+    {
+        result = SELF_TEST_STATUS_FAILED;
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_HD_UI_COMPATIBILITY_ERROR, uiVersion.compatibility, SW_COMPATIBILITY_REV )
+    }
 
     return result;
 }