diff --git a/ohneschwanzenegger/newnandbin.cpp b/ohneschwanzenegger/newnandbin.cpp
index 2cb1990..7f58fe9 100644
--- a/ohneschwanzenegger/newnandbin.cpp
+++ b/ohneschwanzenegger/newnandbin.cpp
@@ -9,7 +9,7 @@ NewNandBin::NewNandBin( QWidget *parent, QList<quint16> badBlocks ) : QDialog(pa
     foreach( quint16 block, badBlocks )
     {
 		QString txt = QString( "%1" ).arg( block );
-		if( !ui->listWidget_badBlocks->findItems( txt, Qt::MatchExactly ).isEmpty() )
+		if( ui->listWidget_badBlocks->findItems( txt, Qt::MatchExactly ).isEmpty() )
 			ui->listWidget_badBlocks->addItem( txt );
     }
 }
@@ -79,28 +79,9 @@ void NewNandBin::on_pushButton_bb_rm_clicked()
     }
 }
 
-//ok clicked
-void NewNandBin::on_buttonBox_accepted()
+bool NewNandBin::CreateDefaultEntries()
 {
-    if( ui->lineEdit_keys->text().isEmpty() || ui->lineEdit_boot->text().isEmpty() || ui->lineEdit_dest->text().isEmpty() )
-    {
-		QMessageBox::warning( this, tr( "Error" ), tr( "Required feilds are empty" ) );
-		return;
-    }
-    QByteArray keys = ReadFile( ui->lineEdit_keys->text() );
-    QByteArray boots = ReadFile( ui->lineEdit_boot->text() );
-    if( keys.size() != 0x400 || boots.size() != 0x108000 )
-    {
-		QMessageBox::warning( this, tr( "Error" ), tr( "The keys or boot1/2 is not correct" ) );
-		return;
-    }
-    if( !nand.CreateNew( ui->lineEdit_dest->text(), keys, boots, BadBlocks() ) )
-    {
-		qDebug() << "error creating nand.bin";
-		return;
-    }
-    //qDebug() << "created nand, trying to add default entries";
-    if( !nand.CreateEntry( "/sys", 0, 0, NAND_DIR, NAND_RW, NAND_RW, 0 )
+	if( !nand.CreateEntry( "/sys", 0, 0, NAND_DIR, NAND_RW, NAND_RW, 0 )
 		|| !nand.CreateEntry( "/ticket", 0, 0, NAND_DIR, NAND_RW, NAND_RW, 0 )
 		|| !nand.CreateEntry( "/title", 0, 0, NAND_DIR, NAND_RW, NAND_RW, NAND_READ )
 		|| !nand.CreateEntry( "/shared1", 0, 0, NAND_DIR, NAND_RW, NAND_RW, 0 )
@@ -111,19 +92,61 @@ void NewNandBin::on_buttonBox_accepted()
 		|| !nand.WriteMetaData() )
 	{
 		qWarning() << "NewNandBin::on_buttonBox_accepted -> error creating directories in the new nand";
-		return;
-    }
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Can't create base folders in the new nand." ) );
+		return false;
+	}
 	//add cert.sys
 	quint16 handle = nand.CreateEntry( "/sys/cert.sys", 0, 0, NAND_FILE, NAND_RW, NAND_RW, NAND_READ );
 	if( !handle || !nand.SetData( handle, QByteArray( (const char*)&certs_dat, CERTS_DAT_SIZE ) ) )
 	{
 		qWarning() << "NewNandBin::on_buttonBox_accepted -> error creating cert in the new nand";
-		return;
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Can't create cert.sys folders in the new nand." ) );
+		return false;
 	}
 	//commit changes to metadata
 	if( !nand.WriteMetaData() )
 	{
 		qWarning() << "NewNandBin::on_buttonBox_accepted -> error writing metadata";
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Can't write metadata in the new nand." ) );
+		return false;
+	}
+	return true;
+}
+
+//ok clicked
+void NewNandBin::on_buttonBox_accepted()
+{
+    if( ui->lineEdit_keys->text().isEmpty() || ui->lineEdit_boot->text().isEmpty() || ui->lineEdit_dest->text().isEmpty() )
+    {
+		QMessageBox::warning( this, tr( "Error" ), tr( "Required feilds are empty" ) );
+		return;
+    }
+	if( keys.isEmpty() )
+		keys = ReadFile( ui->lineEdit_keys->text() );
+	if( boots.isEmpty() )
+		boots = ReadFile( ui->lineEdit_boot->text() );
+    if( keys.size() != 0x400 || boots.size() != 0x108000 )
+    {
+		QMessageBox::warning( this, tr( "Error" ), tr( "The keys or boot1/2 is not correct" ) );
+		keys.clear();
+		boots.clear();
+		return;
+    }
+    if( !nand.CreateNew( ui->lineEdit_dest->text(), keys, boots, BadBlocks() ) )
+    {
+		qDebug() << "error creating nand.bin";
+		keys.clear();
+		boots.clear();
+		return;
+    }
+	//qDebug() << "created nand, trying to add default entries";
+	if( !CreateDefaultEntries() )
+	{
+		keys.clear();
+		boots.clear();
 		return;
 	}
 
@@ -171,3 +194,86 @@ void NewNandBin::on_pushButton_badBlockFile_clicked()
 		ui->listWidget_badBlocks->addItem( line );
     }
 }
+
+//read info from existing nand.bin
+void NewNandBin::on_pushButton_oldNand_clicked()
+{
+	QString f = QFileDialog::getOpenFileName( this, tr( "Select Old nand.bin" ), dir );
+	if( f.isEmpty() )
+		return;
+
+
+	QFileInfo fi( f );
+	QFile file( fi.absoluteFilePath() );
+	if( !file.exists() || !file.open( QIODevice::ReadOnly ) )
+	{
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Can't open %1!" ).arg( fi.absoluteFilePath() ) );
+		return;
+	}
+	ui->listWidget_badBlocks->clear();
+
+	switch( fi.size() )
+	{
+	case 0x21000000:// w/ ecc, keys in different file
+		{
+			boots = file.read( 0x108000 );
+			//file.seek();
+			keys = ReadFile( fi.absoluteDir().absoluteFilePath( "keys.bin" ) );
+
+		}
+		break;
+	case 0x21000400:// w/ ecc, keys at end of nand dump
+		{
+			boots = file.read( 0x108000 );
+			file.seek( 0x21000000 );
+			keys = file.read( 0x400 );
+			//keys = ReadFile( fi.absoluteDir().absoluteFilePath( "keys.bin" ) );
+
+		}
+		break;
+	default://unsupported for this
+		QMessageBox::warning( this, tr( "Error" ), tr( "I need a nand dump with ecc to create a new nand from.<br>Accepted sizes are 0x21000000 and 0x21000400." ) );
+		file.close();
+		return;
+		break;
+	}
+	file.close();
+
+	//create nandBin object to get the list of bad blocks
+	NandBin old( this );
+	if( !old.SetPath( fi.absoluteFilePath() ) || !old.InitNand() )
+	{
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Error reading %1." ).arg( fi.absoluteFilePath() ) );
+		keys.clear();
+		boots.clear();
+		return;
+	}
+	QList<quint16> clusters = old.GetFats();
+	QList<quint16> badBlacks;
+	if( !clusters.size() == 0x8000 )
+	{
+		QMessageBox::warning( this, tr( "Error" ), \
+							  tr( "Expected 0x8000 clusters from the nand, but got %1 instead!" ).arg( clusters.size(), 0, 16 ), QMessageBox::Ok );
+		keys.clear();
+		boots.clear();
+		return;
+	}
+	for( quint16 i = 0; i < 0x8000; i += 8 )//first cluster of each block.
+	{
+		//qDebug() << hex << i << clusters.at( i );
+		if( clusters.at( i ) == 0xFFFD )
+		{
+			quint16 block = ( i / 8 );
+			badBlacks << block;
+			QString txt = QString( "%1" ).arg( block );
+			qDebug() << "bad cluster" << hex << i << block << txt;
+			//if( ui->listWidget_badBlocks->findItems( txt, Qt::MatchExactly ).isEmpty() )//just in case, but this should always be true
+				ui->listWidget_badBlocks->addItem( txt );
+		}
+	}
+	ui->lineEdit_boot->setText( tr( "<From old nand>" ) );
+	ui->lineEdit_keys->setText( tr( "<From old nand>" ) );
+
+}
diff --git a/ohneschwanzenegger/newnandbin.h b/ohneschwanzenegger/newnandbin.h
index 156898c..185b730 100644
--- a/ohneschwanzenegger/newnandbin.h
+++ b/ohneschwanzenegger/newnandbin.h
@@ -27,8 +27,14 @@ private:
     QString ret;
     QString dir;
 
+	QByteArray boots;
+	QByteArray keys;
+
+	bool CreateDefaultEntries();
+
 private slots:
-    void on_pushButton_badBlockFile_clicked();
+	void on_pushButton_oldNand_clicked();
+	void on_pushButton_badBlockFile_clicked();
     void on_buttonBox_accepted();
     void on_pushButton_bb_rm_clicked();
     void on_pushButton_bb_add_clicked();
diff --git a/ohneschwanzenegger/newnandbin.ui b/ohneschwanzenegger/newnandbin.ui
index 0e41f83..eef0947 100644
--- a/ohneschwanzenegger/newnandbin.ui
+++ b/ohneschwanzenegger/newnandbin.ui
@@ -14,7 +14,7 @@
    <string>New Nand</string>
   </property>
   <layout class="QGridLayout" name="gridLayout_2">
-   <item row="0" column="0" colspan="2">
+   <item row="0" column="0" colspan="3">
     <layout class="QFormLayout" name="formLayout">
      <item row="0" column="0">
       <widget class="QPushButton" name="pushButton_keys">
@@ -178,7 +178,7 @@
      </layout>
     </widget>
    </item>
-   <item row="1" column="1">
+   <item row="1" column="2">
     <spacer name="horizontalSpacer">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
@@ -191,7 +191,7 @@
      </property>
     </spacer>
    </item>
-   <item row="2" column="0" colspan="2">
+   <item row="2" column="0" colspan="3">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
@@ -201,6 +201,19 @@
      </property>
     </widget>
    </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="pushButton_oldNand">
+     <property name="minimumSize">
+      <size>
+       <width>150</width>
+       <height>69</height>
+      </size>
+     </property>
+     <property name="text">
+      <string>Existing Nand...</string>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>