diff --git a/app/build.gradle b/app/build.gradle
index bacc2f10..c4d7dac8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 201
-        versionName "1.12.11 'Caerbannog'"
+        versionCode 300
+        versionName "1.13.0 'ReStart'"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
diff --git a/app/src/main/cpp/monerujo.cpp b/app/src/main/cpp/monerujo.cpp
index c511be6c..dc6ac8f7 100644
--- a/app/src/main/cpp/monerujo.cpp
+++ b/app/src/main/cpp/monerujo.cpp
@@ -785,7 +785,7 @@ Java_com_m2049r_xmrwallet_model_Wallet_getDaemonBlockChainTargetHeight(JNIEnv *e
 }
 
 JNIEXPORT jboolean JNICALL
-Java_com_m2049r_xmrwallet_model_Wallet_isSynchronized(JNIEnv *env, jobject instance) {
+Java_com_m2049r_xmrwallet_model_Wallet_isSynchronizedJ(JNIEnv *env, jobject instance) {
     Bitmonero::Wallet *wallet = getHandle<Bitmonero::Wallet>(env, instance);
     return static_cast<jboolean>(wallet->synchronized());
 }
@@ -909,6 +909,16 @@ Java_com_m2049r_xmrwallet_model_Wallet_refreshAsync(JNIEnv *env, jobject instanc
     wallet->refreshAsync();
 }
 
+//TODO virtual bool rescanBlockchain() = 0;
+
+//virtual void rescanBlockchainAsync() = 0;
+JNIEXPORT void JNICALL
+Java_com_m2049r_xmrwallet_model_Wallet_rescanBlockchainAsync(JNIEnv *env, jobject instance) {
+    Bitmonero::Wallet *wallet = getHandle<Bitmonero::Wallet>(env, instance);
+    wallet->rescanBlockchainAsync();
+}
+
+
 //TODO virtual void setAutoRefreshInterval(int millis) = 0;
 //TODO virtual int autoRefreshInterval() const = 0;
 
diff --git a/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java b/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java
index e1b4603a..0d2e3174 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java
@@ -438,7 +438,7 @@ public class GenerateFragment extends Fragment {
             height = RestoreHeight.getInstance().getHeight(parser.parse(restoreHeight));
         } catch (ParseException ex) {
         }
-        if (height <= 0)
+        if ((height <= 0) && (restoreHeight.length() == 8))
             try {
                 // is it a date without dashes?
                 SimpleDateFormat parser = new SimpleDateFormat("yyyyMMdd");
diff --git a/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java b/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java
index b8e3429b..0d8572c4 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java
@@ -217,6 +217,20 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         releaseWakeLock();
     }
 
+    private void onWalletRescan() {
+        try {
+            final WalletFragment walletFragment = (WalletFragment)
+                    getSupportFragmentManager().findFragmentByTag(WalletFragment.class.getName());
+            getWallet().rescanBlockchainAsync();
+            synced = false;
+            walletFragment.unsync();
+            invalidateOptionsMenu();
+        } catch (ClassCastException ex) {
+            Timber.d(ex.getLocalizedMessage());
+            // keep calm and carry on
+        }
+    }
+
     @Override
     protected void onStop() {
         Timber.d("onStop()");
@@ -243,7 +257,7 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
     public boolean onPrepareOptionsMenu(Menu menu) {
         MenuItem renameItem = menu.findItem(R.id.action_rename);
         if (renameItem != null)
-            renameItem.setVisible(hasWallet() && getWallet().isSynchronized());
+            renameItem.setEnabled(hasWallet() && getWallet().isSynchronized());
         MenuItem streetmodeItem = menu.findItem(R.id.action_streetmode);
         if (streetmodeItem != null)
             if (isStreetMode()) {
@@ -251,12 +265,18 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
             } else {
                 streetmodeItem.setIcon(R.drawable.gunther_24dp);
             }
+        final MenuItem rescanItem = menu.findItem(R.id.action_rescan);
+        if (rescanItem != null)
+            rescanItem.setEnabled(isSynced());
         return super.onPrepareOptionsMenu(menu);
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
+            case R.id.action_rescan:
+                onWalletRescan();
+                return true;
             case R.id.action_info:
                 onWalletDetails();
                 return true;
diff --git a/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java b/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
index 7e214d95..ea8e4aed 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java
@@ -356,6 +356,14 @@ public class WalletFragment extends Fragment
         if (isVisible()) enableAccountsList(true); //otherwise it is enabled in onResume()
     }
 
+    public void unsync() {
+        if (!activityCallback.isWatchOnly()) {
+            bSend.setVisibility(View.INVISIBLE);
+            bSend.setEnabled(false);
+        }
+        if (isVisible()) enableAccountsList(false); //otherwise it is enabled in onResume()
+    }
+
     boolean walletLoaded = false;
 
     public void onLoaded() {
diff --git a/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java b/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java
index 25b7dacf..14d6e0b4 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/layout/NodeInfoAdapter.java
@@ -130,9 +130,9 @@ public class NodeInfoAdapter extends RecyclerView.Adapter<NodeInfoAdapter.ViewHo
 
         private void showStar() {
             if (nodeItem.isFavourite()) {
-                ibBookmark.setImageResource(R.drawable.ic_bookmark_24dp);
+                ibBookmark.setImageResource(R.drawable.ic_favorite_24dp);
             } else {
-                ibBookmark.setImageResource(R.drawable.ic_bookmark_border_24dp);
+                ibBookmark.setImageResource(R.drawable.ic_favorite_border_24dp);
             }
         }
 
diff --git a/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java b/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java
index ec9f80e9..660744da 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/model/Wallet.java
@@ -248,7 +248,13 @@ public class Wallet {
 
     public native long getDaemonBlockChainTargetHeight();
 
-    public native boolean isSynchronized();
+    public native boolean isSynchronizedJ();
+
+    public boolean isSynchronized() {
+        final long daemonHeight = getDaemonBlockChainHeight();
+        if (daemonHeight == 0) return false;
+        return isSynchronizedJ() && (getBlockChainHeight() == daemonHeight);
+    }
 
     public static native String getDisplayAmount(long amount);
 
@@ -278,6 +284,8 @@ public class Wallet {
 
     public native void refreshAsync();
 
+    public native void rescanBlockchainAsync();
+
 //TODO virtual void setAutoRefreshInterval(int millis) = 0;
 //TODO virtual int autoRefreshInterval() const = 0;
 
diff --git a/app/src/main/java/com/m2049r/xmrwallet/util/RestoreHeight.java b/app/src/main/java/com/m2049r/xmrwallet/util/RestoreHeight.java
index 1bc4e1f0..a7346427 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/util/RestoreHeight.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/util/RestoreHeight.java
@@ -109,6 +109,13 @@ public class RestoreHeight {
         blockheight.put("2019-09-01", 1913201L);
         blockheight.put("2019-10-01", 1934732L);
         blockheight.put("2019-11-01", 1957051L);
+        blockheight.put("2019-12-01", 1978433L);
+        blockheight.put("2020-01-01", 2001315L);
+        blockheight.put("2020-02-01", 2023656L);
+        blockheight.put("2020-03-01", 2044552L);
+        blockheight.put("2020-04-01", 2066806L);
+        blockheight.put("2020-05-01", 2088411L);
+        blockheight.put("2020-06-01", 2110702L);
     }
 
     public long getHeight(String date) {
diff --git a/app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeEditText.java b/app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeEditText.java
index 364aca7b..644dbe50 100644
--- a/app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeEditText.java
+++ b/app/src/main/java/com/m2049r/xmrwallet/widget/ExchangeEditText.java
@@ -68,15 +68,19 @@ public class ExchangeEditText extends LinearLayout {
         }
         boolean ok = true;
         String nativeAmount = getNativeAmount();
-        try {
-            double amount = Double.parseDouble(nativeAmount);
-            if ((amount < min) || (amount > max)) {
+        if (nativeAmount == null) {
+            ok = false;
+        } else {
+            try {
+                double amount = Double.parseDouble(nativeAmount);
+                if ((amount < min) || (amount > max)) {
+                    ok = false;
+                }
+            } catch (NumberFormatException ex) {
+                // this cannot be
+                Timber.e(ex.getLocalizedMessage());
                 ok = false;
             }
-        } catch (NumberFormatException ex) {
-            // this cannot be
-            Timber.e(ex.getLocalizedMessage());
-            ok = false;
         }
         if (!ok) {
             shakeAmountField();
diff --git a/app/src/main/res/drawable/ic_bookmark_24dp.xml b/app/src/main/res/drawable/ic_bookmark_24dp.xml
deleted file mode 100644
index cf64e057..00000000
--- a/app/src/main/res/drawable/ic_bookmark_24dp.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24.0"
-    android:viewportHeight="24.0">
-    <path
-        android:fillColor="@color/gradientPink"
-        android:pathData="M17,3H7c-1.1,0 -1.99,0.9 -1.99,2L5,21l7,-3 7,3V5c0,-1.1 -0.9,-2 -2,-2z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_bookmark_border_24dp.xml b/app/src/main/res/drawable/ic_bookmark_border_24dp.xml
deleted file mode 100644
index 1cae0eb2..00000000
--- a/app/src/main/res/drawable/ic_bookmark_border_24dp.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24.0"
-    android:viewportHeight="24.0">
-    <path
-        android:fillColor="@color/gradientPink"
-        android:pathData="M17,3L7,3c-1.1,0 -1.99,0.9 -1.99,2L5,21l7,-3 7,3L19,5c0,-1.1 -0.9,-2 -2,-2zM17,18l-5,-2.18L7,18L7,5h10v13z" />
-</vector>
diff --git a/app/src/main/res/drawable/ic_favorite_24dp.xml b/app/src/main/res/drawable/ic_favorite_24dp.xml
new file mode 100644
index 00000000..2cc9234a
--- /dev/null
+++ b/app/src/main/res/drawable/ic_favorite_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/gradientPink"
+        android:pathData="M12,21.35l-1.45,-1.32C5.4,15.36 2,12.28 2,8.5 2,5.42 4.42,3 7.5,3c1.74,0 3.41,0.81 4.5,2.09C13.09,3.81 14.76,3 16.5,3 19.58,3 22,5.42 22,8.5c0,3.78 -3.4,6.86 -8.55,11.54L12,21.35z"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_favorite_border_24dp.xml b/app/src/main/res/drawable/ic_favorite_border_24dp.xml
new file mode 100644
index 00000000..ae7b4362
--- /dev/null
+++ b/app/src/main/res/drawable/ic_favorite_border_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/gradientPink"
+        android:pathData="M16.5,3c-1.74,0 -3.41,0.81 -4.5,2.09C10.91,3.81 9.24,3 7.5,3 4.42,3 2,5.42 2,8.5c0,3.78 3.4,6.86 8.55,11.54L12,21.35l1.45,-1.32C18.6,15.36 22,12.28 22,8.5 22,5.42 19.58,3 16.5,3zM12.1,18.55l-0.1,0.1 -0.1,-0.1C7.14,14.24 4,11.39 4,8.5 4,6.5 5.5,5 7.5,5c1.54,0 3.04,0.99 3.57,2.36h1.87C13.46,5.99 14.96,5 16.5,5c2,0 3.5,1.5 3.5,3.5 0,2.89 -3.14,5.74 -7.9,10.05z"/>
+</vector>
diff --git a/app/src/main/res/layout/item_node.xml b/app/src/main/res/layout/item_node.xml
index 85c7a6c2..546acb2b 100644
--- a/app/src/main/res/layout/item_node.xml
+++ b/app/src/main/res/layout/item_node.xml
@@ -18,7 +18,7 @@
         android:padding="12dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
         android:gravity="center"
-        android:src="@drawable/ic_bookmark_border_24dp" />
+        android:src="@drawable/ic_favorite_border_24dp" />
 
     <LinearLayout
         android:id="@+id/llNode"
diff --git a/app/src/main/res/menu/wallet_menu.xml b/app/src/main/res/menu/wallet_menu.xml
index 691c7700..97c47578 100644
--- a/app/src/main/res/menu/wallet_menu.xml
+++ b/app/src/main/res/menu/wallet_menu.xml
@@ -34,4 +34,9 @@
         android:title="@string/menu_info"
         app:showAsAction="never" />
 
+    <item
+        android:id="@+id/action_rescan"
+        android:orderInCategory="600"
+        android:title="@string/menu_rescan"
+        app:showAsAction="never" />
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/values-cat/strings.xml b/app/src/main/res/values-cat/strings.xml
index 41818a3b..67665ca1 100644
--- a/app/src/main/res/values-cat/strings.xml
+++ b/app/src/main/res/values-cat/strings.xml
@@ -383,4 +383,6 @@
     <string name="label_restoreheight">Restablir Alçada</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 45ebe8ce..161677a2 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -386,4 +386,6 @@
     <string name="label_restoreheight">Wiederherstellungshöhe</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index bcd1db1b..5598201b 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Ύψος ανάκτησης</string> <!-- "Restore Height" -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-eo/strings.xml b/app/src/main/res/values-eo/strings.xml
index a1f32886..27c22218 100644
--- a/app/src/main/res/values-eo/strings.xml
+++ b/app/src/main/res/values-eo/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Restaŭralteco</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index d593f157..9e361f5c 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -375,4 +375,6 @@
     <string name="label_restoreheight">Altura de Restauración</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-et/strings.xml b/app/src/main/res/values-et/strings.xml
index 59cc42bb..583bc5b4 100644
--- a/app/src/main/res/values-et/strings.xml
+++ b/app/src/main/res/values-et/strings.xml
@@ -383,4 +383,6 @@
     <string name="label_restoreheight">Taastamise plokinumber</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 2a33c318..5008abbc 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -389,4 +389,6 @@
     <string name="label_restoreheight">Hauteur de restauration</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-hu/strings.xml b/app/src/main/res/values-hu/strings.xml
index fb7b66d3..6293da10 100644
--- a/app/src/main/res/values-hu/strings.xml
+++ b/app/src/main/res/values-hu/strings.xml
@@ -387,4 +387,6 @@
     <string name="label_restoreheight">Visszaállítási lánchossz</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 0f4e4215..1fde8ac5 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -388,4 +388,6 @@
     <string name="label_restoreheight">Altezza di ripristino</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index b5c786f0..c1b7c559 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -394,4 +394,6 @@
     <string name="label_restoreheight">Restore Height</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-nb/strings.xml b/app/src/main/res/values-nb/strings.xml
index 2c1a8725..44159557 100644
--- a/app/src/main/res/values-nb/strings.xml
+++ b/app/src/main/res/values-nb/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Restore Height</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-nl/strings.xml b/app/src/main/res/values-nl/strings.xml
index 18960262..b8b916cc 100644
--- a/app/src/main/res/values-nl/strings.xml
+++ b/app/src/main/res/values-nl/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Herstelpunt</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 08767a78..8b2f2bf7 100755
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -377,4 +377,6 @@
     <string name="label_restoreheight">Restaurar da altura</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-pt/strings.xml b/app/src/main/res/values-pt/strings.xml
index 1b3ee7cd..ae58d052 100644
--- a/app/src/main/res/values-pt/strings.xml
+++ b/app/src/main/res/values-pt/strings.xml
@@ -389,4 +389,6 @@
     <string name="label_restoreheight">Restaurar de Altura</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-ro/strings.xml b/app/src/main/res/values-ro/strings.xml
index 8ddd0266..b807a88b 100644
--- a/app/src/main/res/values-ro/strings.xml
+++ b/app/src/main/res/values-ro/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Restaurează Monobloc</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 6aace5f0..e2d0a680 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -389,4 +389,6 @@
     <string name="label_restoreheight">Восстановить высоту</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-sk/strings.xml b/app/src/main/res/values-sk/strings.xml
index 0ed9d81e..d58a705e 100644
--- a/app/src/main/res/values-sk/strings.xml
+++ b/app/src/main/res/values-sk/strings.xml
@@ -386,4 +386,6 @@
     <string name="label_restoreheight">Výška</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-sr/strings.xml b/app/src/main/res/values-sr/strings.xml
index 84405a59..8e16614c 100644
--- a/app/src/main/res/values-sr/strings.xml
+++ b/app/src/main/res/values-sr/strings.xml
@@ -385,4 +385,6 @@
     <string name="label_restoreheight">Obnovi visinu</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-sv/strings.xml b/app/src/main/res/values-sv/strings.xml
index cdaa367b..829bf46f 100644
--- a/app/src/main/res/values-sv/strings.xml
+++ b/app/src/main/res/values-sv/strings.xml
@@ -370,4 +370,6 @@
     <string name="label_restoreheight">Återställningshöjd</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-ua/strings.xml b/app/src/main/res/values-ua/strings.xml
index e22ead25..d61c7e0a 100644
--- a/app/src/main/res/values-ua/strings.xml
+++ b/app/src/main/res/values-ua/strings.xml
@@ -389,4 +389,6 @@
     <string name="label_restoreheight">Відновити висоту</string> <!-- Restore Height -->
 
     <string name="toast_ledger_start_app">Запуск Monero додатку через %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index c5b5cbfe..05a27e9c 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -307,4 +307,6 @@
     <string name="label_restoreheight">Restore Height</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 255fb8e6..918e9dab 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -384,4 +384,6 @@
     <string name="label_restoreheight">Restore Height</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index bb1ec18f..a7f8ddba 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -436,4 +436,6 @@
     <string name="label_restoreheight">Restore Height</string>
 
     <string name="toast_ledger_start_app">Start Monero App on %1$s</string>
+
+    <string name="menu_rescan">Rescan!</string>
 </resources>
diff --git a/build.gradle b/build.gradle
index 8bc6524d..aa80df27 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.2'
+        classpath 'com.android.tools.build:gradle:3.6.1'
     }
 }
 
diff --git a/external-libs/monero/include/wallet2_api.h b/external-libs/monero/include/wallet2_api.h
index e543a115..9c3df898 100644
--- a/external-libs/monero/include/wallet2_api.h
+++ b/external-libs/monero/include/wallet2_api.h
@@ -400,8 +400,8 @@ struct WalletListener
     /**
      * @brief called by device when passphrase entry is needed
      */
-    virtual optional<std::string> onDevicePassphraseRequest(bool on_device) {
-        if (!on_device) throw std::runtime_error("Not supported");
+    virtual optional<std::string> onDevicePassphraseRequest(bool & on_device) {
+        on_device = true;
         return optional<std::string>();
     }
 
@@ -879,6 +879,14 @@ struct Wallet
      */
     virtual void disposeTransaction(PendingTransaction * t) = 0;
 
+    /*!
+     * \brief Estimates transaction fee.
+     * \param destinations Vector consisting of <address, amount> pairs.
+     * \return Estimated fee.
+     */
+    virtual uint64_t estimateTransactionFee(const std::vector<std::pair<std::string, uint64_t>> &destinations,
+                                            PendingTransaction::Priority priority) const = 0;
+
    /*!
     * \brief exportKeyImages - exports key images to file
     * \param filename
@@ -1085,10 +1093,12 @@ struct WalletManager
      * \param  nettype        Network type
      * \param  restoreHeight  restore from start height
      * \param  kdf_rounds     Number of rounds for key derivation function
+     * \param  seed_offset    Seed offset passphrase (optional)
      * \return                Wallet instance (Wallet::status() needs to be called to check if recovered successfully)
      */
     virtual Wallet * recoveryWallet(const std::string &path, const std::string &password, const std::string &mnemonic,
-                                    NetworkType nettype = MAINNET, uint64_t restoreHeight = 0, uint64_t kdf_rounds = 1) = 0;
+                                    NetworkType nettype = MAINNET, uint64_t restoreHeight = 0, uint64_t kdf_rounds = 1,
+                                    const std::string &seed_offset = {}) = 0;
     Wallet * recoveryWallet(const std::string &path, const std::string &password, const std::string &mnemonic,
                                     bool testnet = false, uint64_t restoreHeight = 0)           // deprecated
     {
@@ -1283,7 +1293,11 @@ struct WalletManager
     virtual std::string resolveOpenAlias(const std::string &address, bool &dnssec_valid) const = 0;
 
     //! checks for an update and returns version, hash and url
-    static std::tuple<bool, std::string, std::string, std::string, std::string> checkUpdates(const std::string &software, std::string subdir);
+    static std::tuple<bool, std::string, std::string, std::string, std::string> checkUpdates(
+        const std::string &software,
+        std::string subdir,
+        const char *buildtag = nullptr,
+        const char *current_version = nullptr);
 };
 
 
diff --git a/external-libs/script/monero-fetch.sh b/external-libs/script/monero-fetch.sh
index f6650393..d6c23291 100755
--- a/external-libs/script/monero-fetch.sh
+++ b/external-libs/script/monero-fetch.sh
@@ -7,7 +7,7 @@ source script/env.sh
 cd $EXTERNAL_LIBS_BUILD_ROOT
 
 url="https://github.com/m2049r/monero"
-version="release-v0.15-monerujo"
+version="release-v0.16.0.0-monerujo"
 
 if [ ! -d "monero" ]; then
   git clone ${url} -b ${version}
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 81e24fbe..72ed9979 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Nov 09 21:47:30 CET 2019
+#Sat Feb 29 10:39:20 CET 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip