diff --git a/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java b/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
index 816602d..f97e596 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/HomeActivityFragments/Summary.java
@@ -288,7 +288,6 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface {
 
             lastTimestamp = System.currentTimeMillis() / 1000;
             balanceManager.updateExchangeKeys();
-            refreshLayout.setRefreshing(true);
 
             resetCounters();
             DataUpdater updater = new DataUpdater();
@@ -319,8 +318,6 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface {
     {
         coinCounter = 0;
         iconCounter = 0;
-        detailsChecker = false;
-        tickersChecker = false;
 
         totalValue = 0;
         totalFluctuation = 0;
@@ -350,17 +347,18 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface {
 
         if(balanceManager.getTotalBalance() != null)
         {
-            if(coinCounter == balanceManager.getTotalBalance().size() && detailsChecker && tickersChecker)
+            if(balanceManager.getTotalBalance().size() == 0)
             {
-                IconDownloader iconDownloader = new IconDownloader();
-                iconDownloader.execute();
+                countIcons();
             }
             else
             {
-                if(balanceManager.getTotalBalance().size() == 0)
+                if(coinCounter >= balanceManager.getTotalBalance().size() && detailsChecker && tickersChecker)
                 {
-                    countIcons();
+                    IconDownloader iconDownloader = new IconDownloader();
+                    iconDownloader.execute();
                 }
+
             }
         }
     }
@@ -398,25 +396,21 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface {
 
     private void updateNoBalance()
     {
-        refreshLayout.setRefreshing(false);
+        getActivity().runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                refreshLayout.setRefreshing(false);
 
-        currencyLayout.removeAllViews();
+                currencyLayout.removeAllViews();
 
-        if(loadingDialog.isShowing())
-        {
-            loadingDialog.dismiss();
-        }
-
-        try {
-            getActivity().runOnUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    updateTitle();
+                if(loadingDialog.isShowing())
+                {
+                    loadingDialog.dismiss();
                 }
-            });
-        } catch (NullPointerException e) {
-            e.printStackTrace();
-        }
+
+                updateTitle();
+            }
+        });
     }
 
     protected void updateTitle()
diff --git a/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java b/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
index 596f692..88a3727 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/RecordTransactionActivity.java
@@ -56,29 +56,33 @@ public class RecordTransactionActivity extends AppCompatActivity {
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.action_record:
-                double amount = Double.parseDouble(amountTxtView.getText().toString());
-                double purchasedPrice = Double.parseDouble(purchasedPriceEditText.getText().toString());
-                double fees = Double.parseDouble(feesTxtView.getText().toString());
 
-                if(!sellButton.isEnabled())
+                if(checkAmountText() && checkPriceText())
                 {
-                    amount *= -1;
-                }
+                    double amount = Double.parseDouble(amountTxtView.getText().toString());
+                    double purchasedPrice = Double.parseDouble(purchasedPriceEditText.getText().toString());
+                    double fees = Double.parseDouble(feesTxtView.getText().toString());
 
-                if(transactionId != -1)
-                {
-                    databaseManager.updateTransactionWithId(transactionId, amount, calendar.getTime(), purchasedPrice, fees);
-                }
-                else
-                {
-                    databaseManager.addCurrencyToManualCurrency(symbol, amount, calendar.getTime(), purchasedPrice, fees);
-                }
+                    if(!sellButton.isEnabled())
+                    {
+                        amount *= -1;
+                    }
 
-                preferenceManager.setMustUpdateSummary(true);
-                Intent intent = new Intent(RecordTransactionActivity.this, HomeActivity.class);
-                intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
-                startActivity(intent);
-                finish();
+                    if(transactionId != -1)
+                    {
+                        databaseManager.updateTransactionWithId(transactionId, amount, calendar.getTime(), purchasedPrice, fees);
+                    }
+                    else
+                    {
+                        databaseManager.addCurrencyToManualCurrency(symbol, amount, calendar.getTime(), purchasedPrice, fees);
+                    }
+
+                    preferenceManager.setMustUpdateSummary(true);
+                    Intent intent = new Intent(RecordTransactionActivity.this, HomeActivity.class);
+                    intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
+                    startActivity(intent);
+                    finish();
+                }
                 break;
             case android.R.id.home:
                 //NavUtils.navigateUpFromSameTask(this);
@@ -90,6 +94,30 @@ public class RecordTransactionActivity extends AppCompatActivity {
         return true;
     }
 
+    private boolean checkPriceText()
+    {
+        if(purchasedPriceEditText.getText().toString().equals(""))
+        {
+            purchasedPriceEditText.setError(getResources().getString(R.string.field_empty));
+
+            return false;
+        }
+
+        return true;
+    }
+
+    private boolean checkAmountText()
+    {
+        if(amountTxtView.getText().toString().equals(""))
+        {
+            amountTxtView.setError(getResources().getString(R.string.field_empty));
+
+            return false;
+        }
+
+        return true;
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
diff --git a/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java b/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
index c8ede87..1b1d874 100644
--- a/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
+++ b/app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java
@@ -85,27 +85,6 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                                 ? listPreference.getEntries()[index]
                                 : null);
 
-            } else if (preference instanceof RingtonePreference) {
-                // For ringtone preferences, look up the correct display value
-                // using RingtoneManager.
-                if (TextUtils.isEmpty(stringValue)) {
-                    // Empty values correspond to 'silent' (no ringtone).
-                    preference.setSummary(R.string.pref_ringtone_silent);
-
-                } else {
-                    Ringtone ringtone = RingtoneManager.getRingtone(
-                            preference.getContext(), Uri.parse(stringValue));
-
-                    if (ringtone == null) {
-                        // Clear the summary if there was a lookup error.
-                        preference.setSummary(null);
-                    } else {
-                        // Set the summary to reflect the new ringtone display
-                        // name.
-                        String name = ringtone.getTitle(preference.getContext());
-                        preference.setSummary(name);
-                    }
-                }
             } else {
                 // For all other preferences, set the summary to the value's
                 // simple string representation.
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 1cedddb..50318d1 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -24,4 +24,66 @@
     <string name="title_transactions">Transactions</string>
     <string name="title_home">Possessions</string>
     <string name="title_market_cap">Capitalisation du marché</string>
+    <string name="pref_title_minimum_amount_displayed">Montant minimum affiché</string>
+    <string name="day_history">Historique du jour</string>
+    <string name="line_chart">Graphique linéaire</string>
+    <string name="candle_stick_chart">Graphique bougie</string>
+    <string name="beginning_price">Prix de départ</string>
+    <string name="current_price">Prix actuel</string>
+    <string name="delta">Delta</string>
+    <string name="total_volume">Volume total</string>
+    <string name="highest_price">Plus haut prix</string>
+    <string name="lowest_price">Plus bas prix</string>
+    <string name="rank">Rang</string>
+    <string name="algorithm">Algorithme</string>
+    <string name="proof_type">Type de preuve</string>
+    <string name="start_date">Date de début</string>
+    <string name="description">Description</string>
+    <string name="transaction_history">Historique de transaction</string>
+    <string name="trade_history">Historique d\'échange</string>
+    <string name="trade_loading">Recherche d\'échange&#8230;</string>
+    <string name="drawer">Volet</string>
+    <string name="dominance_percentage">Dominance en pourcentage</string>
+    <string name="active_cryptocurrencies">Cryptomonnaies actives</string>
+    <string name="volume_24h">Volume sur 24h</string>
+    <string name="active_marketes">Marchés actifs</string>
+    <string name="add_transaction">Ajouter une transaction</string>
+    <string name="add_watchlist">Ajouter à la liste suivie</string>
+    <string name="edit_mode">Mode édition</string>
+    <string name="pref_title_enable_synchronization_binance">Activer la synchronisation</string>
+    <string name="pref_title_binance_publickey">Clé public</string>
+    <string name="pref_title_binance_privatekey">Clé privée</string>
+    <string name="pref_title_enable_synchronization_poloniex">Activer la synchronisation</string>
+    <string name="pref_title_poloniex_publickey">Clé public</string>
+    <string name="pref_title_poloniex_privatekey">Clé privée</string>
+    <string name="pref_title_enable_synchronization_kraken">Activer la synchronisation</string>
+    <string name="pref_title_kraken_publickey">Clé public</string>
+    <string name="pref_title_kraken_privatekey">Clé privée</string>
+    <string name="title_watchlist">Liste suivie</string>
+    <string name="title_coin_list">Liste des monnaies</string>
+    <string name="button1h">1h</string>
+    <string name="button3h">3h</string>
+    <string name="button1d">1j</string>
+    <string name="button3d">3j</string>
+    <string name="button1w">1S</string>
+    <string name="button1m">1M</string>
+    <string name="button3m">3M</string>
+    <string name="button6m">6M</string>
+    <string name="button1y">1A</string>
+    <string name="timestampPlaceholder">Date\n%1$s</string>
+    <string name="volumeDollarPlaceholder">Volume\nUS$%1$s</string>
+    <string name="priceDollarPlaceholder">Prix\nUS$%1$s</string>
+    <string name="volumeEurosPlaceholder">Volume\n%1$s€</string>
+    <string name="priceEurosPlaceholder">Prix\n%1$s€</string>
+    <string name="volumePoundPlaceholder">Volume\n%1$s£</string>
+    <string name="pricePoundPlaceholder">Prix\n%1$s£</string>
+    <string name="volumeYenPlaceholder">Volume\n%1$s¥</string>
+    <string name="priceYenPlaceholder">Prix\n%1$s¥</string>
+    <string name="total_supply">Liquidité totale</string>
+    <string name="circulating_supply">Liquiditée en circulation</string>
+    <string name="market_capitalization">Capitalisation du marché</string>
+    <string name="fingerprint_dialog_cancel">Annuler</string>
+    <string name="fingerprint_dialog_title">Vérifier votre empreinte digitale pour continuer</string>
+    <string name="action_settings">Paramètres</string>
+    <string name="action_edit_mode">Edition</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c157b62..4ac31f0 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -4,7 +4,7 @@
     <string name="debug_volley" translatable="false">Moodl_debugVolley</string>
     <string name="title_activity_settings">Settings</string>
 
-    <string name="currency">currency</string>
+    <string name="currency" translatable="false">currency</string>
 
     <!-- Example General settings -->
     <string name="pref_header_general">General</string>
@@ -39,10 +39,6 @@
 
     <string name="transaction_record">Save</string>
 
-    <!-- Example settings for Notifications -->
-
-    <string name="pref_ringtone_silent">Silent</string>
-
     <!--Fingerprint authentification-->
 
     <!--Cardviews-->
@@ -51,7 +47,7 @@
     <!--Details activity-->
     <string name="line_chart">Line chart</string>
     <string name="candle_stick_chart">Candle stick chart</string>
-    <string name="backline">\n</string>
+    <string name="backline" translatable="false">\n</string>
     <string name="beginning_price">Beginning price</string>
     <string name="current_price">Current price</string>
     <string name="delta">Delta</string>
@@ -69,7 +65,7 @@
     <string name="transaction_history">Transaction history</string>
     <string name="trade_history">Trade history</string>
     <string name="trade_loading">Looking for trades&#8230;</string>
-    <string name="default_value">--</string>
+    <string name="default_value" translatable="false">--</string>
 
     <!--Home activity-->
     <string name="drawer">Drawer</string>
@@ -80,7 +76,7 @@
     <string name="add_transaction">Add transaction</string>
     <string name="add_watchlist">Add to watchlist</string>
     <string name="edit_mode">Edit mode</string>
-    <string name="loading_coin_list">Hodl&#8230;</string>
+    <string name="loading_coin_list" translatable="false">Hodl&#8230;</string>
 
     <!--Exchange strings-->
     <string name="pref_header_exchange">Exchanges settings</string>
@@ -102,28 +98,28 @@
     <string name="pref_title_enable_synchronization_binance">Enable synchronization</string>
     <string name="pref_title_binance_publickey">Public key</string>
     <string name="pref_title_binance_privatekey">Private key</string>
-    <string name="pref_title_exchange_binance">Binance</string>
+    <string name="pref_title_exchange_binance" translatable="false">Binance</string>
 
     <!--Poloniex-->
     <string name="pref_title_enable_synchronization_poloniex">Enable synchronization</string>
     <string name="pref_title_poloniex_publickey">Public key</string>
     <string name="pref_title_poloniex_privatekey">Private key</string>
-    <string name="pref_title_exchange_poloniex">Poloniex</string>
+    <string name="pref_title_exchange_poloniex" translatable="false">Poloniex</string>
 
     <!--Kraken-->
     <string name="pref_title_enable_synchronization_kraken">Enable synchronization</string>
     <string name="pref_title_kraken_publickey">Public key</string>
     <string name="pref_title_kraken_privatekey">Private key</string>
-    <string name="pref_title_exchange_kraken">Kraken</string>
+    <string name="pref_title_exchange_kraken" translatable="false">Kraken</string>
 
     <!--Add transaction activity-->
     <string name="activity_add_amount">Amount</string>
     <string name="activity_purchased_price">Purchased price</string>
     <string name="activity_purchased_date">Purchased date</string>
     <string name="activity_fees">Fees</string>
-    <string name="title_activity_currency_details">CurrencyDetailsActivity</string>
+    <string name="title_activity_currency_details" translatable="false">CurrencyDetailsActivity</string>
     <string name="title_history">History charts</string>
-    <string name="title_watchlist" translatable="false">Watchlist</string>
+    <string name="title_watchlist">Watchlist</string>
     <string name="title_infos">Infos</string>
     <string name="title_transactions">Transactions</string>
     <string name="title_home">Holdings</string>
@@ -142,25 +138,25 @@
     <string name="button1y">1y</string>
 
     <!--Cardview placeholders-->
-    <string name="currencySymbolPlaceholder">(%1$s)</string>
-    <string name="currencyBalancePlaceholder">%1$s%2$s</string>
-    <string name="currencyPercentagePlaceholder">%1$s%%</string>
+    <string name="currencySymbolPlaceholder" translatable="false">(%1$s)</string>
+    <string name="currencyBalancePlaceholder" translatable="false">%1$s%2$s</string>
+    <string name="currencyPercentagePlaceholder" translatable="false">%1$s%%</string>
     <!--Dollar-->
-    <string name="currencyDollarParenthesisPlaceholder">(US$%1$s)</string>
-    <string name="currencyDollarPlaceholder">US$%1$s</string>
-    <string name="fluctuationDollarPercentagePlaceholder">US$%1$s (%2$s%%)</string>
+    <string name="currencyDollarParenthesisPlaceholder" translatable="false">(US$%1$s)</string>
+    <string name="currencyDollarPlaceholder" translatable="false">US$%1$s</string>
+    <string name="fluctuationDollarPercentagePlaceholder" translatable="false">US$%1$s (%2$s%%)</string>
     <!--Euro-->
-    <string name="currencyEurosParenthesisPlaceholder">(%1$s€)</string>
-    <string name="currencyEurosPlaceholder">%1$s€</string>
-    <string name="fluctuationEurosPercentagePlaceholder">%1$s€ (%2$s%%)</string>
+    <string name="currencyEurosParenthesisPlaceholder" translatable="false">(%1$s€)</string>
+    <string name="currencyEurosPlaceholder" translatable="false">%1$s€</string>
+    <string name="fluctuationEurosPercentagePlaceholder" translatable="false">%1$s€ (%2$s%%)</string>
     <!--Pound-->
-    <string name="currencyPoundParenthesisPlaceholder">(%1$s£)</string>
-    <string name="currencyPoundPlaceholder">%1$s£</string>
-    <string name="fluctuationPoundPercentagePlaceholder">%1$s£ (%2$s%%)</string>
+    <string name="currencyPoundParenthesisPlaceholder" translatable="false">(%1$s£)</string>
+    <string name="currencyPoundPlaceholder" translatable="false">%1$s£</string>
+    <string name="fluctuationPoundPercentagePlaceholder" translatable="false">%1$s£ (%2$s%%)</string>
     <!--Yen-->
-    <string name="currencyYenParenthesisPlaceholder">(%1$s¥)</string>
-    <string name="currencyYenPlaceholder">%1$s¥</string>
-    <string name="fluctuationYenPercentagePlaceholder">%1$s¥ (%2$s%%)</string>
+    <string name="currencyYenParenthesisPlaceholder" translatable="false">(%1$s¥)</string>
+    <string name="currencyYenPlaceholder" translatable="false">%1$s¥</string>
+    <string name="fluctuationYenPercentagePlaceholder" translatable="false">%1$s¥ (%2$s%%)</string>
 
     <!--DetailsActivity placeholders-->
     <string name="timestampPlaceholder">Date\n%1$s</string>
@@ -190,4 +186,6 @@
     <string name="action_settings">Settings</string>
     <string name="action_edit_mode">Edition</string>
 
+    <string name="field_empty">This field cannot be blank</string>
+
 </resources>