diff --git a/app/src/main/java/fr/android/pointspermis/settings/ConfigActivity.java b/app/src/main/java/fr/android/pointspermis/settings/ConfigActivity.java
new file mode 100644
index 0000000..d84ca91
--- /dev/null
+++ b/app/src/main/java/fr/android/pointspermis/settings/ConfigActivity.java
@@ -0,0 +1,267 @@
+package fr.android.pointspermis.settings;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.media.Ringtone;
+import android.media.RingtoneManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceManager;
+import android.support.v4.app.NavUtils;
+import android.text.TextUtils;
+import android.view.MenuItem;
+
+import java.util.List;
+
+import fr.android.pointspermis.R;
+
+/**
+ * A {@link android.preference.PreferenceActivity} that presents a set of application settings. On
+ * handset devices, settings are presented as a single list. On tablets,
+ * settings are split by category, with category headers shown to the left of
+ * the list of settings.
+ * <p/>
+ * See <a href="http://developer.android.com/design/patterns/settings.html">
+ * Android Design: Settings</a> for design guidelines and the <a
+ * href="http://developer.android.com/guide/topics/ui/settings.html">Settings
+ * API Guide</a> for more information on developing a Settings UI.
+ */
+public class ConfigActivity extends PreferenceActivity {
+
+    public final static String DOSSIER_KEY = "dossier";
+    public final static String DOSSIER1_KEY = "dossier1";
+    public final static String DOSSIER2_KEY = "dossier2";
+    public final static String DOSSIER3_KEY = "dossier3";
+    public final static String CODE_KEY = "code";
+
+    /**
+     * Determines whether to always show the simplified settings UI, where
+     * settings are presented in a single list. When false, settings are shown
+     * as a master/detail two-pane view on tablets. When true, a single pane is
+     * shown on tablets.
+     */
+    private static final boolean ALWAYS_SIMPLE_PREFS = false;
+
+    // Shared Prefs
+    private SharedPreferences prefs;
+    private static SharedPreferences.Editor editor;
+
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Shared prefs
+        prefs = getSharedPreferences("fr.android.pointspermis", MODE_PRIVATE);
+        editor = prefs.edit();
+    }
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+
+        // Add the 'go back' navigation button (top left)
+        getActionBar().setDisplayHomeAsUpEnabled(true);
+
+        // Show the settings
+        setupSimplePreferencesScreen();
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            // Respond to the action bar's Up/Home button
+            case android.R.id.home:
+                NavUtils.navigateUpFromSameTask(this);
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /**
+     * Shows the simplified settings UI if the device configuration if the
+     * device configuration dictates that a simplified, single-pane UI should be
+     * shown.
+     */
+    private void setupSimplePreferencesScreen() {
+
+        if (!isSimplePreferences(this)) {
+            return;
+        }
+
+        // In the simplified UI, fragments are not used at all and we instead
+        // use the older PreferenceActivity APIs.
+
+        // Add 'connection' preferences.
+        addPreferencesFromResource(R.xml.pref_connection);
+
+        // Bind the summaries of EditText/List/Dialog/Ringtone preferences to
+        // their values. When their values change, their summaries are updated
+        // to reflect the new value, per the Android Design guidelines.
+        manageValueAndSummary(findPreference(DOSSIER_KEY));
+        manageValueAndSummary(findPreference(CODE_KEY));
+    }
+
+    /**
+     * A preference value change listener that updates the preference's summary
+     * to reflect its new value.
+     */
+    private static Preference.OnPreferenceChangeListener changeListener = new Preference.OnPreferenceChangeListener() {
+        @Override
+        public boolean onPreferenceChange(Preference preference, Object value) {
+
+            if (preference.hasKey()) {
+
+                String key = preference.getKey();
+
+                if (key.equals(DOSSIER_KEY)) {
+
+                    /* No need to save values or update the summary as this is already done in
+                    *  custom dialogPreference, but anyway we still do it ..
+                    */
+
+                    // Update the summary
+                    ((DossierDialogPreference) preference).updateSummary();
+
+                    // Get and save the dossier number
+                    String dossier1 = ((DossierDialogPreference) preference).getDossier1();
+                    String dossier2 = ((DossierDialogPreference) preference).getDossier2();
+                    String dossier3 = ((DossierDialogPreference) preference).getDossier3();
+                    editor.putString(DOSSIER1_KEY, dossier1);
+                    editor.putString(DOSSIER2_KEY, dossier2);
+                    editor.putString(DOSSIER3_KEY, dossier3);
+                    editor.putString(DOSSIER_KEY, dossier1 + " " + dossier2 + " " + dossier3);
+                }
+                if (key.equals(CODE_KEY)) {
+
+                    /* Do not change summary: code is private ! */
+
+                    // Save the value
+                    editor.putString(key, value.toString());
+                }
+
+                editor.commit();
+            }
+
+            return true;
+        }
+    };
+
+    /**
+     * Binds a preference's summary to its value. More specifically, when the
+     * preference's value is changed, its summary (line of text below the
+     * preference title) is updated to reflect the value. The summary is also
+     * immediately updated upon calling this method. The exact display format is
+     * dependent on the type of preference.
+     *
+     * @see #changeListener
+     */
+    private static void manageValueAndSummary(Preference preference) {
+
+        // Set the listener to watch for value changes.
+        preference.setOnPreferenceChangeListener(changeListener);
+
+        String key = preference.getKey();
+
+        // Trigger the listener immediately with the preference's current value to
+        // update summary on element we want
+
+        // /!\ not for dossier as it is self-managed neither code: not secure /!\
+
+        /* Text parameters
+        if (key.equals(RINGTONE_KEY) || key.equals(FREQUENCY_KEY)) {
+
+            // Safe list default changes
+            if (!PreferenceManager
+                    .getDefaultSharedPreferences(preference.getContext())
+                    .getString(preference.getKey(), "").equals("") ) {
+
+                changeListener.onPreferenceChange(preference,
+                        PreferenceManager
+                                .getDefaultSharedPreferences(preference.getContext())
+                                .getString(preference.getKey(), "")
+                );
+            }
+        }*/
+    }
+
+    /**
+     * This fragment shows general preferences only. It is used when the
+     * activity is showing a two-pane settings UI.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public static class ConnectionPreferenceFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            addPreferencesFromResource(R.xml.pref_connection);
+
+            // Bind the summaries of EditText/List/Dialog/Ringtone preferences
+            // to their values. When their values change, their summaries are
+            // updated to reflect the new value, per the Android Design
+            // guidelines.
+            manageValueAndSummary(findPreference(DOSSIER_KEY));
+            manageValueAndSummary(findPreference(CODE_KEY));
+        }
+    }
+
+    /**
+     * This fragment shows notification preferences only. It is used when the
+     * activity is showing a two-pane settings UI.
+     */
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public static class NotificationPreferenceFragment extends PreferenceFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean onIsMultiPane() {
+        return isXLargeTablet(this) && !isSimplePreferences(this);
+    }
+
+    /**
+     * Helper method to determine if the device has an extra-large screen. For
+     * example, 10" tablets are extra-large.
+     */
+    private static boolean isXLargeTablet(Context context) {
+        return (context.getResources().getConfiguration().screenLayout
+                & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
+    }
+
+    /**
+     * Determines whether the simplified settings UI should be shown. This is
+     * true if this is forced via {@link #ALWAYS_SIMPLE_PREFS}, or the device
+     * doesn't have newer APIs like {@link android.preference.PreferenceFragment}, or the device
+     * doesn't have an extra-large screen. In these cases, a single-pane
+     * "simplified" settings UI should be shown.
+     */
+    private static boolean isSimplePreferences(Context context) {
+        return ALWAYS_SIMPLE_PREFS
+                || Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB
+                || !isXLargeTablet(context);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
+    public void onBuildHeaders(List<Header> target) {
+        if (!isSimplePreferences(this)) {
+            loadHeadersFromResource(R.xml.pref_headers, target);
+        }
+    }
+}