diff --git a/trunk/ConsoleDataMigration/ConsoleRestore/Controller.cpp b/trunk/ConsoleDataMigration/ConsoleRestore/Controller.cpp
index 8a5c3ea..f9af94f 100644
--- a/trunk/ConsoleDataMigration/ConsoleRestore/Controller.cpp
+++ b/trunk/ConsoleDataMigration/ConsoleRestore/Controller.cpp
@@ -325,8 +325,8 @@ void ControlState(::std::vector<std::string>& operationMessage, bool& nextStep,
                                     {
                                         COMMON_LOGGER("Initialize Console\n");
 
-                                        // SDカードのIVSと本体のIVSは異なるか？
-                                        if (EqualsIVSFileandIVS())
+                                        // SDカードのシリアルナンバーと本体のシリアルナンバーは異なるか？
+                                        if (EqualsSerialFileandSerial())
                                         {
                                             // 同一本体に書き戻そうとしたファイルを作る
                                             COMMON_LOGGER("Restore to the same console. Initialize.\n");
diff --git a/trunk/ConsoleDataMigration/ConsoleRestore/Importer.cpp b/trunk/ConsoleDataMigration/ConsoleRestore/Importer.cpp
index 0c49c40..4b8efcc 100644
--- a/trunk/ConsoleDataMigration/ConsoleRestore/Importer.cpp
+++ b/trunk/ConsoleDataMigration/ConsoleRestore/Importer.cpp
@@ -67,7 +67,7 @@ TimeZone s_TimeZone;
 const size_t NTP_SERVER_NAME_LENGTH = 256;
 char s_NtpServerName[NTP_SERVER_NAME_LENGTH];
 
-bool s_CheckedEqualsIVSFileandIVS = false;
+bool s_CheckedEqualsSerialFileandSerial = false;
 bool s_CheckedEqualsRegionDataandRegion = false;
 bool s_ReadSerialNumber = false;
 
@@ -222,69 +222,28 @@ u8* ReadSerialNumber()
     return s_SerialNo;
 }
 
-bool EqualsIVSFileandIVS()
+bool EqualsSerialFileandSerial()
 {
     nn::Result result;
-    void* ivs;
-    size_t ivsSize;
-    size_t readSize;
+    u8* serial;
+    size_t serialSize;
     static bool retval = false;
 
-    if(s_CheckedEqualsIVSFileandIVS)
+    if(s_CheckedEqualsSerialFileandSerial)
     {
         return retval;
     }
 
-    COMMON_LOGGER("Check IVS\n");
+    COMMON_LOGGER("Check Serial Number\n");
 
-    GetIvs(&ivs, &ivsSize);
+    GetSerialNumber(&serial, &serialSize);
+    ReadSerialNumber();
 
-    size_t bufSize = common::HeapManager::GetHeap()->GetAllocatableSize() / 2;
-    NN_LOG("AllocatableSize = %d\n", bufSize);
-
-    void* enc = common::HeapManager::GetHeap()->Allocate(bufSize);
-    if (enc != NULL)
+    if(std::memcmp(s_SerialNo, serial, nn::cfg::CTR::CFG_SECURE_INFO_SERIAL_NO_LEN) == 0)
     {
-        common::SdReaderWriter sdReader;
-
-        result = sdReader.ReadBuf(common::IVS_PATHNAME, enc, bufSize, &readSize);
-        if(result.IsSuccess())
-        {
-            void *dec = common::HeapManager::GetHeap()->Allocate(readSize);
-            if(dec != NULL)
-            {
-                // AES復号化する
-                nn::crypto::Initialize();
-                nn::crypto::SwAesCtrContext swAesCtrContest;
-
-                swAesCtrContest.Initialize(s_IvsDecryptIv, common::key, sizeof(common::key));
-                swAesCtrContest.Decrypt(dec, enc, readSize);
-
-                NN_LOG("readSize = %d, ivsSize = %d\n", readSize, ivsSize);
-                // サイズ一致かつ内容一致でtrue
-                if (readSize == ivsSize && std::memcmp(ivs, dec, ivsSize) == 0)
-                {
-                    retval = true;
-                }
-
-                common::HeapManager::GetHeap()->Free(dec);
-
-            }
-            else
-            {
-                NN_LOG("Failed Allocate Heap!! %s, %d", __FILE__, __LINE__);
-            }
-        }
-        COMMON_LOGGER_RESULT_IF_FAILED_WITH_LINE(result);
-
-        s_CheckedEqualsIVSFileandIVS = true;
-        common::HeapManager::GetHeap()->Free(enc);
-    }
-    else
-    {
-        NN_LOG("Failed Allocate Heap!! %s, %d", __FILE__, __LINE__);
-        return retval;
+        retval = true;
     }
+    s_CheckedEqualsSerialFileandSerial = true;
 
     return retval;
 }
@@ -1345,7 +1304,7 @@ void ImportTwlSoundData()
 
 void ClearFileReadResult()
 {
-    s_CheckedEqualsIVSFileandIVS = false;
+    s_CheckedEqualsSerialFileandSerial = false;
     s_CheckedEqualsRegionDataandRegion = false;
     s_ReadSerialNumber = false;
 }
diff --git a/trunk/ConsoleDataMigration/ConsoleRestore/Importer.h b/trunk/ConsoleDataMigration/ConsoleRestore/Importer.h
index 03f46d1..8cf420a 100644
--- a/trunk/ConsoleDataMigration/ConsoleRestore/Importer.h
+++ b/trunk/ConsoleDataMigration/ConsoleRestore/Importer.h
@@ -23,7 +23,7 @@
 namespace ConsoleRestore
 {
 
-bool EqualsIVSFileandIVS();
+bool EqualsSerialFileandSerial();
 bool EqualsRegionDataandRegion();
 u8* ReadSerialNumber();