diff --git a/app/build.gradle b/app/build.gradle
index f05b562..8595f6b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,8 +12,8 @@ android {
         compileSdk 34
         targetSdkVersion 34
         multiDexEnabled true
-        versionCode 31
-        versionName "4.5.0"
+        versionCode 38
+        versionName "4.5.7"
         testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
         buildFeatures.dataBinding = true
         vectorDrawables.useSupportLibrary = true
diff --git a/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/database/HistoryItem.java b/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/database/HistoryItem.java
index 151e1fc..88677a6 100644
--- a/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/database/HistoryItem.java
+++ b/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/database/HistoryItem.java
@@ -4,6 +4,7 @@
 import android.os.Parcel;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.room.Entity;
 import androidx.room.Ignore;
 import androidx.room.PrimaryKey;
@@ -28,6 +29,7 @@ public class HistoryItem {
     private Bitmap image;
     @NonNull
     private String text = "";
+    @Nullable
     private byte[] rawBytes;
     private int numBits;
     private ResultPoint[] resultPoints;
diff --git a/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/ui/activities/generator/TelEnterActivity.java b/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/ui/activities/generator/TelEnterActivity.java
index bb25cbb..63c8fe8 100644
--- a/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/ui/activities/generator/TelEnterActivity.java
+++ b/app/src/main/java/com/secuso/privacyfriendlycodescanner/qrscanner/ui/activities/generator/TelEnterActivity.java
@@ -20,8 +20,6 @@
 
 public class TelEnterActivity extends AppCompatActivity {
 
-    private static final int REQUEST_SELECT_PHONE = 1;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -55,43 +53,5 @@ public void onClick(View v) {
             }
 
         });
-
-        findViewById(R.id.selectContactButton).setOnClickListener(view -> selectPhoneNumber());
-
-    }
-
-    private void selectPhoneNumber() {
-        Intent intent = new Intent(Intent.ACTION_PICK);
-        intent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_TYPE);
-        if (intent.resolveActivity(getPackageManager()) != null) {
-            startActivityForResult(intent, REQUEST_SELECT_PHONE);
-        }
-    }
-
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-        super.onActivityResult(requestCode, resultCode, data);
-
-        if (requestCode == REQUEST_SELECT_PHONE && resultCode == RESULT_OK) {
-            Uri contactUri = data.getData();
-            String[] projection =
-                    {
-                            ContactsContract.CommonDataKinds.Phone._ID,
-                            ContactsContract.CommonDataKinds.Phone.NUMBER,
-                            ContactsContract.CommonDataKinds.Phone.TYPE,
-                            ContactsContract.CommonDataKinds.Phone.LABEL
-                    };
-            try {
-                Cursor cursor = getContentResolver().query(contactUri, projection, null, null, null);
-                if (cursor.moveToFirst()) {
-                    int phoneNoIdx = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
-                    String phoneNo = cursor.getString(phoneNoIdx);
-                    ((EditText) findViewById(R.id.editPhone)).setText(phoneNo);
-                }
-                cursor.close();
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-        }
     }
 }
diff --git a/app/src/main/res/layout/activity_tel_enter.xml b/app/src/main/res/layout/activity_tel_enter.xml
index 0f54e8b..2f98e68 100644
--- a/app/src/main/res/layout/activity_tel_enter.xml
+++ b/app/src/main/res/layout/activity_tel_enter.xml
@@ -39,19 +39,6 @@
             android:minHeight="48dp" />
     </com.google.android.material.textfield.TextInputLayout>
 
-    <Button
-        android:id="@+id/selectContactButton"
-        style="@style/Widget.MaterialComponents.Button.OutlinedButton.Icon"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        android:text="@string/import_from_contacts"
-        app:icon="@drawable/ic_person_accent_24dp"
-        app:layout_constraintEnd_toEndOf="@+id/textInputLayout"
-        app:layout_constraintHorizontal_bias="0.0"
-        app:layout_constraintStart_toStartOf="@+id/textInputLayout"
-        app:layout_constraintTop_toBottomOf="@+id/textInputLayout" />
-
 
     <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
         android:id="@id/btnGenerate"