diff --git a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
index bae7dd37229..1c3553c44f4 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
@@ -176,8 +176,14 @@ bool S60CreatePackageStep::init()
     m_environment = qt4BuildConfiguration()->environment();
 
     m_args.clear();
-    if (m_createSmartInstaller)
-        m_args << QLatin1String("installer_sis");
+    if (m_createSmartInstaller) {
+        if(signingMode() == NotSigned)
+            m_args << QLatin1String("unsigned_installer_sis");
+        else
+            m_args << QLatin1String("installer_sis");
+
+    } else if (signingMode() == NotSigned)
+        m_args << QLatin1String("unsigned_sis");
     else
         m_args << QLatin1String("sis");
     if (signingMode() == SignCustom) {
@@ -645,6 +651,8 @@ S60CreatePackageStepConfigWidget::S60CreatePackageStepConfigWidget(S60CreatePack
             this, SLOT(updateFromUi()));
     connect(m_ui.selfSignedButton, SIGNAL(clicked()),
             this, SLOT(updateFromUi()));
+    connect(m_ui.notSignedButton, SIGNAL(clicked()),
+            this, SLOT(updateFromUi()));
     connect(m_ui.signaturePath, SIGNAL(changed(QString)),
             this, SLOT(updateFromUi()));
     connect(m_ui.keyFilePath, SIGNAL(changed(QString)),
@@ -657,11 +665,27 @@ S60CreatePackageStepConfigWidget::S60CreatePackageStepConfigWidget(S60CreatePack
 
 void S60CreatePackageStepConfigWidget::updateUi()
 {
-    bool selfSigned = m_signStep->signingMode() == S60CreatePackageStep::SignSelf;
-    m_ui.selfSignedButton->setChecked(selfSigned);
-    m_ui.customCertificateButton->setChecked(!selfSigned);
-    m_ui.signaturePath->setEnabled(!selfSigned);
-    m_ui.keyFilePath->setEnabled(!selfSigned);
+
+    switch(m_signStep->signingMode()) {
+    case S60CreatePackageStep::SignCustom:
+        m_ui.selfSignedButton->setChecked(false);
+        m_ui.customCertificateButton->setChecked(true);
+        m_ui.notSignedButton->setChecked(false);
+        break;
+    case S60CreatePackageStep::NotSigned:
+        m_ui.selfSignedButton->setChecked(false);
+        m_ui.customCertificateButton->setChecked(false);
+        m_ui.notSignedButton->setChecked(true);
+        break;
+    default:
+        m_ui.selfSignedButton->setChecked(true);
+        m_ui.customCertificateButton->setChecked(false);
+        m_ui.notSignedButton->setChecked(false);
+        break;
+    }
+    bool customSigned = m_signStep->signingMode() == S60CreatePackageStep::SignCustom;
+    m_ui.signaturePath->setEnabled(customSigned);
+    m_ui.keyFilePath->setEnabled(customSigned);
     m_ui.signaturePath->setPath(m_signStep->customSignaturePath());
     m_ui.keyFilePath->setPath(m_signStep->customKeyPath());
     m_ui.smartInstaller->setChecked(m_signStep->createsSmartInstaller());
@@ -670,9 +694,15 @@ void S60CreatePackageStepConfigWidget::updateUi()
 
 void S60CreatePackageStepConfigWidget::updateFromUi()
 {
-    bool selfSigned = m_ui.selfSignedButton->isChecked();
-    m_signStep->setSigningMode(selfSigned ? S60CreatePackageStep::SignSelf
-        : S60CreatePackageStep::SignCustom);
+    S60CreatePackageStep::SigningMode signingMode(S60CreatePackageStep::SignSelf);
+    if (m_ui.selfSignedButton->isChecked())
+        signingMode = S60CreatePackageStep::SignSelf;
+    else if (m_ui.customCertificateButton->isChecked())
+        signingMode = S60CreatePackageStep::SignCustom;
+    else if (m_ui.notSignedButton->isChecked())
+        signingMode = S60CreatePackageStep::NotSigned;
+
+    m_signStep->setSigningMode(signingMode);
     m_signStep->setCustomSignaturePath(m_ui.signaturePath->path());
     m_signStep->setCustomKeyPath(m_ui.keyFilePath->path());
     m_signStep->setCreatesSmartInstaller(m_ui.smartInstaller->isChecked());
@@ -691,11 +721,17 @@ void S60CreatePackageStepConfigWidget::resetPassphrases()
 QString S60CreatePackageStepConfigWidget::summaryText() const
 {
     QString text;
-    if (m_signStep->signingMode() == S60CreatePackageStep::SignSelf) {
-        text = tr("self-signed");
-    } else {
+    switch(m_signStep->signingMode()) {
+    case S60CreatePackageStep::SignCustom:
         text = tr("signed with certificate %1 and key file %2")
                .arg(m_signStep->customSignaturePath(), m_signStep->customKeyPath());
+        break;
+    case S60CreatePackageStep::NotSigned:
+        text = tr("not signed");
+        break;
+    default:
+        text = tr("self-signed");
+        break;
     }
     if (m_signStep->createsSmartInstaller())
         return tr("<b>Create SIS Package:</b> %1, using Smart Installer").arg(text);
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.h b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.h
index 8cdc5ecb91c..b37e517f17d 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.h
+++ b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.h
@@ -74,7 +74,8 @@ class S60CreatePackageStep : public ProjectExplorer::BuildStep
 public:
     enum SigningMode {
         SignSelf = 0,
-        SignCustom = 1
+        SignCustom = 1,
+        NotSigned = 2
     };
 
     explicit S60CreatePackageStep(ProjectExplorer::BuildStepList *bsl);
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.ui b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.ui
index a0278c33265..b9eccf5ad1a 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.ui
+++ b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>517</width>
-    <height>108</height>
+    <height>135</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -15,7 +15,31 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <layout class="QGridLayout" name="gridLayout_2">
+    <layout class="QGridLayout" name="gridLayout_3" rowstretch="0,0" columnstretch="0,0" rowminimumheight="0,0" columnminimumwidth="0,0">
+     <item row="1" column="0">
+      <widget class="QRadioButton" name="notSignedButton">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="notSignedLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Not signed</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QGridLayout" name="gridLayout_2" columnstretch="0,0" columnminimumwidth="0,0">
      <item row="0" column="0">
       <widget class="QRadioButton" name="selfSignedButton">
        <property name="text">
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.cpp b/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.cpp
index f3a4abb28a4..cd4a04a64e0 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.cpp
@@ -147,13 +147,20 @@ QStringList S60DeployConfiguration::signedPackages() const
             continue;
         TargetInformation ti = node->targetInformation();
         if (ti.valid)
-            result << ti.buildDir + QLatin1Char('/') + ti.target
-                      + (runSmartInstaller() ? QLatin1String("_installer") : QLatin1String(""))
-                      + QLatin1String(".sis");
+            result << ti.buildDir + QLatin1Char('/') + createPackageName(ti.target);
     }
     return result;
 }
 
+QString S60DeployConfiguration::createPackageName(const QString &baseName) const
+{
+    QString name(baseName);
+    name += isSigned() ? QLatin1String("") : QLatin1String("_unsigned");
+    name += runSmartInstaller() ? QLatin1String("_installer") : QLatin1String("");
+    name += QLatin1String(".sis");
+    return name;
+}
+
 QStringList S60DeployConfiguration::packageFileNamesWithTargetInfo() const
 {
     QList<Qt4ProFileNode *> leafs = qt4Target()->qt4Project()->leafProFiles();
@@ -216,6 +223,21 @@ bool S60DeployConfiguration::runSmartInstaller() const
     return false;
 }
 
+bool S60DeployConfiguration::isSigned() const
+{
+    DeployConfiguration *dc = target()->activeDeployConfiguration();
+    QTC_ASSERT(dc, return false);
+    BuildStepList *bsl = dc->stepList();
+    QTC_ASSERT(bsl, return false);
+    QList<BuildStep *> steps = bsl->steps();
+    foreach (const BuildStep *step, steps) {
+        if (const S60CreatePackageStep *packageStep = qobject_cast<const S60CreatePackageStep *>(step)) {
+            return packageStep->signingMode() != S60CreatePackageStep::NotSigned;
+        }
+    }
+    return false;
+}
+
 ProjectExplorer::ToolChain::ToolChainType S60DeployConfiguration::toolChainType() const
 {
     if (Qt4BuildConfiguration *bc = qobject_cast<Qt4BuildConfiguration *>(target()->activeBuildConfiguration()))
diff --git a/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.h b/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.h
index 198178dad22..1d299eedd94 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.h
+++ b/src/plugins/qt4projectmanager/qt-s60/s60deployconfiguration.h
@@ -93,8 +93,10 @@ protected:
 private:
     void ctor();
     bool runSmartInstaller() const;
+    bool isSigned() const;
     QString symbianPlatform() const;
     QString symbianTarget() const;
+    QString createPackageName(const QString &baseName) const;
     bool isDebug() const;
     bool isStaticLibrary(const Qt4ProFileNode &projectNode) const;