Index: sources/view/VUIPowerOnSelfTest.cpp
===================================================================
diff -u -ra73067eedc12bcb4a41afdf4aabb6db9f1994f33 -rd005537390186cc065a824a923f41d615782b552
--- sources/view/VUIPowerOnSelfTest.cpp	(.../VUIPowerOnSelfTest.cpp)	(revision a73067eedc12bcb4a41afdf4aabb6db9f1994f33)
+++ sources/view/VUIPowerOnSelfTest.cpp	(.../VUIPowerOnSelfTest.cpp)	(revision d005537390186cc065a824a923f41d615782b552)
@@ -17,6 +17,7 @@
 // Qt
 #include <QJsonDocument>
 #include <QRegularExpression>
+#include <QDateTime>
 
 // Project
 #include "FileHandler.h"
@@ -48,6 +49,7 @@
 {
     AdjustUIPostFinalResultRequestData data;
 
+    // assume success then set to 0 if there are any failures
     data.mResult = 1;
     if (!selfTestFileSystem())
         data.mResult = 0;
@@ -61,8 +63,6 @@
         data.mResult = 0;
     if (!selfTestRTCClock())
         data.mResult = 0;
-    if (!selfTestClockSpeed())
-        data.mResult = 0;
 
     emit didAdjustment(data);
 }
@@ -96,20 +96,17 @@
     if (!FileHandler::read(Path_FileSystem_Checksums, obj))
         return false;
     bool result = true;
-    QStringList invalidChecksums;
     for (const QString& path : obj.keys())
     {
         QString calculatedChecksum = sha256(path);
         if ( calculatedChecksum != obj.value(path).toString())
         {
-            invalidChecksums.append(path);
+            LOG_DEBUG(QString("Invalid checksum detected: %1").arg(path));
             result = false;
         } else {
             LOG_DEBUG(QString("Checksum verified: %1").arg(path));
         }
     }
-    for (const QString &invalidChecksum : invalidChecksums)
-        LOG_DEBUG(QString("Invalid checksum detected: %1").arg(invalidChecksum));
 
     return result;
 }
@@ -215,23 +212,38 @@
 }
 
 /*!
- * \brief VUIPostSingleResult::selfTestRTCClock
- * Tests that the RTC clock is correct
+ * \brief VUIPostSingleResult::selfTestClockSpeed
+ * Test that the clock speed can be read and is within spec
  */
 bool VUIPowerOnSelfTest::selfTestRTCClock()
 {
-    // TODO: If needed
-    return true;
-}
+    QString content;
+    if (!FileHandler::read(Path_RTC_Check, content))
+    {
+        LOG_DEBUG(QString("Could not read %1!").arg(Path_RTC_Check));
+        return false;
+    }
 
-/*!
- * \brief VUIPostSingleResult::selfTestClockSpeed
- * Test that the clock speed is within spec
- */
-bool VUIPowerOnSelfTest::selfTestClockSpeed()
-{
-    // TODO: If needed
-    return true;
+    QStringList lines = content.split("\n", QString::SkipEmptyParts);
+    QList<double> times;
+    for (const QString &line : lines)
+    {
+        bool ok = false;
+        double tm = line.toDouble(&ok);
+        if (ok)
+            times.append(tm);
+    }
+    if (times.length() == 2)
+    {
+        double diff = times.at(1) - times.at(0);
+        if ((diff > 0) && (diff < (1.0 + _rtc_tolerance)))
+        {
+            LOG_DEBUG("RTC Clock speed check passed.");
+            return true;
+        }
+    }
+    LOG_DEBUG("RTC Clock speed check failed.");
+    return false;
 }
 
 /*!