diff --git a/app/src/main/java/org/iota/wallet/ui/fragment/GenerateQRCodeFragment.java b/app/src/main/java/org/iota/wallet/ui/fragment/GenerateQRCodeFragment.java
index 3d8e16a..b41a183 100644
--- a/app/src/main/java/org/iota/wallet/ui/fragment/GenerateQRCodeFragment.java
+++ b/app/src/main/java/org/iota/wallet/ui/fragment/GenerateQRCodeFragment.java
@@ -39,7 +39,6 @@
 
 import com.google.gson.Gson;
 
-import org.apache.commons.lang3.StringUtils;
 import org.greenrobot.eventbus.EventBus;
 import org.greenrobot.eventbus.Subscribe;
 import org.iota.wallet.IOTA;
@@ -58,7 +57,6 @@
 import butterknife.Unbinder;
 import jota.error.ArgumentException;
 import jota.utils.Checksum;
-import jota.utils.InputValidator;
 import jota.utils.IotaUnits;
 
 public class GenerateQRCodeFragment extends Fragment {
@@ -81,12 +79,8 @@ public class GenerateQRCodeFragment extends Fragment {
     TextInputEditText messageEditText;
     @BindView(R.id.generate_qr_code_tag_input)
     TextInputEditText tagEditText;
-    @BindView(R.id.generate_qr_code_address_input_aylout)
+    @BindView(R.id.generate_qr_code_address_input_layout)
     TextInputLayout addressEditTextInputLayout;
-    @BindView(R.id.generate_qr_code_message_input_aylout)
-    TextInputLayout messageEditTextInputLayout;
-    @BindView(R.id.generate_qr_code_tag_input_aylout)
-    TextInputLayout tagEditTextInputLayout;
     @BindView(R.id.generate_qr_code_units_spinner)
     Spinner unitsSpinner;
 
@@ -138,26 +132,20 @@ public void onGenerateQrCodeClick(FloatingActionButton fab) {
         inputManager.hideSoftInputFromWindow(fab.getWindowToken(), 0);
         //reset errors
         addressEditTextInputLayout.setError(null);
-        messageEditTextInputLayout.setError(null);
-        tagEditTextInputLayout.setError(null);
 
+        //noinspection StatementWithEmptyBody
         if (!isValidAddress()) {
 
-        } else if (!InputValidator.isTrytes(getMessage(), getMessage().length()) && !getMessage().equals(getMessage().toUpperCase())) {
-            messageEditTextInputLayout.setError(getString(R.string.messages_invalid_characters));
-
-        } else if (!InputValidator.isTrytes(getTaG(), getTaG().length()) && !getTaG().equals(getTaG().toUpperCase())) {
-            tagEditTextInputLayout.setError(getString(R.string.messages_invalid_characters));
-
         } else {
 
             QRCode qrCode = new QRCode();
             qrCode.setAddress(addressEditText.getText().toString());
 
-            if (getAmount().isEmpty())
+            if (getAmount().isEmpty()) {
                 qrCode.setAmount("");
-            else
+            } else {
                 qrCode.setAmount(amountInSelectedUnit());
+            }
 
             qrCode.setMessage(messageEditText.getText().toString());
             qrCode.setTag(tagEditText.getText().toString());
@@ -312,9 +300,6 @@ private String getMessage() {
     }
 
     private String getTaG() {
-        if (tagEditText.getText().toString().length() < 27)
-            return StringUtils.rightPad(tagEditText.getText().toString(), 27, '9');
-        else
             return tagEditText.getText().toString();
     }
 }
diff --git a/app/src/main/java/org/iota/wallet/ui/fragment/NewTransferFragment.java b/app/src/main/java/org/iota/wallet/ui/fragment/NewTransferFragment.java
index e1a8f46..ec7bb45 100644
--- a/app/src/main/java/org/iota/wallet/ui/fragment/NewTransferFragment.java
+++ b/app/src/main/java/org/iota/wallet/ui/fragment/NewTransferFragment.java
@@ -65,7 +65,6 @@
 import butterknife.Unbinder;
 import jota.error.ArgumentException;
 import jota.utils.Checksum;
-import jota.utils.InputValidator;
 import jota.utils.IotaUnitConverter;
 import jota.utils.IotaUnits;
 
@@ -92,10 +91,6 @@ public class NewTransferFragment extends Fragment {
     TextInputLayout addressEditTextInputLayout;
     @BindView(R.id.new_transfer_amount_text_input_layout)
     TextInputLayout amountEditTextInputLayout;
-    @BindView(R.id.new_transfer_message_text_input_layout)
-    TextInputLayout messageEditTextInputLayout;
-    @BindView(R.id.new_transfer_tag_input_layout)
-    TextInputLayout tagEditTextInputLayout;
     @BindView(R.id.new_transfer_units_spinner)
     Spinner unitsSpinner;
 
@@ -171,10 +166,9 @@ public void onNewTransferSendFabClick(FloatingActionButton fab) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
 
         addressEditTextInputLayout.setError(null);
-        tagEditTextInputLayout.setError(null);
         amountEditTextInputLayout.setError(null);
-        messageEditTextInputLayout.setError(null);
 
+        //noinspection StatementWithEmptyBody
         if (!isValidAddress()) {
 
         } else if (getAmount().isEmpty() || getAmount().equals("0")) {
@@ -183,15 +177,6 @@ public void onNewTransferSendFabClick(FloatingActionButton fab) {
         } else if (prefs.getLong(Constants.PREFERENCES_CURRENT_IOTA_BALANCE, 0) < Long.parseLong(amountInSelectedUnit())) {
             amountEditTextInputLayout.setError(getString(R.string.messages_not_enough_balance));
 
-        } else if (!InputValidator.isTrytes(getMessage(), getMessage().length()) && !getMessage().equals(getMessage().toUpperCase())) {
-            messageEditTextInputLayout.setError(getString(R.string.messages_invalid_characters));
-
-        } else if (!InputValidator.isTrytes(getTaG(), getTaG().length()) && !getTaG().equals(getTaG().toUpperCase())) {
-            tagEditTextInputLayout.setError(getString(R.string.messages_invalid_characters));
-
-        } else if (getTaG().length() > 27) {
-            tagEditTextInputLayout.setError(getString(R.string.messages_tag_to_long));
-
         } else {
             AlertDialog alertDialog = new AlertDialog.Builder(getActivity())
                     .setMessage(R.string.message_confirm_transfer)
@@ -400,11 +385,10 @@ private String getMessage() {
     }
 
     private String getTaG() {
-        if (tagEditText.getText().toString().isEmpty())
+        if (tagEditText.getText().toString().isEmpty()) {
             return Constants.NEW_TRANSFER_TAG;
-        else if (tagEditText.getText().toString().length() < 27)
+        } else if (tagEditText.getText().toString().length() < 27)
             return StringUtils.rightPad(tagEditText.getText().toString(), 27, '9');
-        else
-            return tagEditText.getText().toString();
+        return tagEditText.getText().toString();
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/iota/wallet/ui/fragment/SeedLoginFragment.java b/app/src/main/java/org/iota/wallet/ui/fragment/SeedLoginFragment.java
index e3e3fa0..33277c6 100644
--- a/app/src/main/java/org/iota/wallet/ui/fragment/SeedLoginFragment.java
+++ b/app/src/main/java/org/iota/wallet/ui/fragment/SeedLoginFragment.java
@@ -113,14 +113,16 @@ public boolean onSeedLoginSeedInputEditorAction(int actionId, KeyEvent event) {
 
     private void loginDialog() {
 
-        if (seedEditText.getText().toString().isEmpty()) {
+        //TODO Only accept seeds that are longer than SeedValidator.SEED_LENGTH_MIN ?
+
+        String seed = seedEditText.getText().toString();
+
+        if (seed.isEmpty()) {
             seedEditTextLayout.setError(getString(R.string.messages_empty_seed));
             if (seedEditTextLayout.getError() != null)
                 return;
         }
 
-        String seed = seedEditText.getText().toString();
-
         if (SeedValidator.isSeedValid(getActivity(), seed) == null) {
             login();
 
diff --git a/app/src/main/res/layout/fragment_generate_qr.xml b/app/src/main/res/layout/fragment_generate_qr.xml
index 3b99c76..0451fdf 100644
--- a/app/src/main/res/layout/fragment_generate_qr.xml
+++ b/app/src/main/res/layout/fragment_generate_qr.xml
@@ -34,7 +34,7 @@
 
             <!--  Address Label -->
             <android.support.design.widget.TextInputLayout
-                android:id="@+id/generate_qr_code_address_input_aylout"
+                android:id="@+id/generate_qr_code_address_input_layout"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:paddingTop="72dp"
@@ -47,13 +47,14 @@
                     android:layout_height="wrap_content"
                     android:hint="@string/address"
                     android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ9"
+                    android:maxLength="90"
                     android:inputType="text" />
 
             </android.support.design.widget.TextInputLayout>
 
             <!--  Amount Label -->
             <android.support.design.widget.TextInputLayout
-                android:id="@+id/generate_qr_code_amount_input_aylout"
+                android:id="@+id/generate_qr_code_amount_input_layout"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/baseline"
@@ -70,6 +71,7 @@
                         android:layout_height="wrap_content"
                         android:layout_weight="1"
                         android:hint="@string/amount"
+                        android:maxLength="16"
                         android:inputType="numberSigned" />
 
                     <Spinner
@@ -83,11 +85,10 @@
 
             <!--  Message Label -->
             <android.support.design.widget.TextInputLayout
-                android:id="@+id/generate_qr_code_message_input_aylout"
+                android:id="@+id/generate_qr_code_message_input_layout"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/baseline_typo"
-                app:errorEnabled="true"
                 app:hintTextAppearance="@style/TextLabel">
 
                 <android.support.design.widget.TextInputEditText
@@ -102,11 +103,10 @@
 
             <!--  Tag Label -->
             <android.support.design.widget.TextInputLayout
-                android:id="@+id/generate_qr_code_tag_input_aylout"
+                android:id="@+id/generate_qr_code_tag_input_layout"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/baseline_typo"
-                app:errorEnabled="true"
                 app:hintTextAppearance="@style/TextLabel">
 
                 <android.support.design.widget.TextInputEditText
@@ -115,6 +115,7 @@
                     android:layout_height="wrap_content"
                     android:hint="@string/tag_optional"
                     android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ9"
+                    android:maxLength="27"
                     android:inputType="text" />
 
             </android.support.design.widget.TextInputLayout>
diff --git a/app/src/main/res/layout/fragment_neighbors.xml b/app/src/main/res/layout/fragment_neighbors.xml
index 8559d03..42d50a6 100644
--- a/app/src/main/res/layout/fragment_neighbors.xml
+++ b/app/src/main/res/layout/fragment_neighbors.xml
@@ -53,7 +53,6 @@
                 android:paddingRight="@dimen/baseline"
                 tools:visibility="gone">
 
-                <!--  Amount Label -->
                 <android.support.design.widget.TextInputLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
diff --git a/app/src/main/res/layout/fragment_new_transfer.xml b/app/src/main/res/layout/fragment_new_transfer.xml
index 74d6681..f050a81 100644
--- a/app/src/main/res/layout/fragment_new_transfer.xml
+++ b/app/src/main/res/layout/fragment_new_transfer.xml
@@ -50,6 +50,7 @@
                     android:layout_height="wrap_content"
                     android:hint="@string/address"
                     android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ9"
+                    android:maxLength="90"
                     android:inputType="text" />
 
             </android.support.design.widget.TextInputLayout>
@@ -74,6 +75,7 @@
                         android:layout_height="wrap_content"
                         android:layout_weight="1"
                         android:hint="@string/amount"
+                        android:maxLength="16"
                         android:inputType="numberSigned" />
 
                     <Spinner
@@ -91,7 +93,6 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/baseline_typo"
-                app:errorEnabled="true"
                 app:hintTextAppearance="@style/TextLabel">
 
                 <android.support.design.widget.TextInputEditText
@@ -110,7 +111,6 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/baseline_typo"
-                app:errorEnabled="true"
                 app:hintTextAppearance="@style/TextLabel">
 
                 <android.support.design.widget.TextInputEditText
@@ -119,6 +119,7 @@
                     android:layout_height="wrap_content"
                     android:hint="@string/tag_optional"
                     android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ9"
+                    android:maxLength="27"
                     android:inputType="text" />
 
             </android.support.design.widget.TextInputLayout>