diff --git a/app/build.gradle b/app/build.gradle
index 3cf9e92..a4236d3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -188,6 +188,7 @@ dependencies {
     implementation project(path: ':qrgen-lib')
 ////    implementation project(path: ':samlSirius')
     implementation project(path: ':ecr')
+    implementation project(path: ':nexdlkey-lib')
 
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2' // 1.1.2
diff --git a/app/src/main/java/com/utsmm/kbz/MainActivity.java b/app/src/main/java/com/utsmm/kbz/MainActivity.java
index 4909807..9e0fe11 100644
--- a/app/src/main/java/com/utsmm/kbz/MainActivity.java
+++ b/app/src/main/java/com/utsmm/kbz/MainActivity.java
@@ -16,18 +16,25 @@ import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.WindowManager;
 import android.widget.Toast;
 
 import com.google.android.material.appbar.MaterialToolbar;
 import com.google.android.material.navigation.NavigationView;
+import com.nexgo.downloadkey.downloadflow.DownloadFEntity;
+import com.nexgo.downloadkey.downloadflow.DownloadFlow;
+import com.nexgo.downloadkey.downloadflow.DownloadFlowProcessListener;
+import com.nexgo.downloadkey.downloadflow.DownloadFlowResultEntity;
+import com.nexgo.downloadkey.downloadflow.DownloadResult;
 import com.utsmyanmar.baselib.repo.Repository;
 import com.utsmyanmar.baselib.ui.AnimationDialog;
 import com.utsmyanmar.checkxread.sdk.NexGoSDK;
 import com.utsmyanmar.ecr.ECRHelper;
 import com.utsmyanmar.paylibs.Constant;
 import com.utsmyanmar.paylibs.print.printx.PrintXReceipt;
+import com.utsmyanmar.paylibs.utils.POSUtil;
 import com.utsmyanmar.paylibs.utils.core_utils.SystemParamsOperation;
 import com.utsmyanmar.paylibs.utils.enums.TransMenu;
 import com.utsmyanmar.paylibs.utils.iso_utils.TransactionsType;
@@ -126,6 +133,8 @@ public class MainActivity extends AppCompatActivity implements
         initSpecialBackHandlingFragments();
     }
 
+
+
     private void initViewModels() {
         sharedViewModel = new ViewModelProvider(this).get(SharedViewModel.class);
     }
diff --git a/app/src/main/java/com/utsmm/kbz/ui/SettingsFragment.java b/app/src/main/java/com/utsmm/kbz/ui/SettingsFragment.java
index 09bc43d..294677c 100644
--- a/app/src/main/java/com/utsmm/kbz/ui/SettingsFragment.java
+++ b/app/src/main/java/com/utsmm/kbz/ui/SettingsFragment.java
@@ -1,17 +1,23 @@
 package com.utsmm.kbz.ui;
 
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.view.View;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
 import androidx.navigation.Navigation;
 
 import com.google.gson.Gson;
 import com.google.gson.stream.MalformedJsonException;
+import com.nexgo.downloadkey.downloadflow.DownloadFEntity;
+import com.nexgo.downloadkey.downloadflow.DownloadFlow;
+import com.nexgo.downloadkey.downloadflow.DownloadFlowProcessListener;
+import com.nexgo.downloadkey.downloadflow.DownloadFlowResultEntity;
+import com.nexgo.downloadkey.downloadflow.DownloadResult;
 import com.utsmyanmar.baselib.emv.EmvParamOperation;
 import com.utsmyanmar.baselib.fragment.DataBindingFragment;
 import com.utsmyanmar.baselib.network.model.sirius.SiriusError;
@@ -196,6 +202,16 @@ public class SettingsFragment extends DataBindingFragment {
             }
         }
 
+        public void onInjectKeyClick() {
+            try {
+                LogUtil.d(TAG, "Inject Key clicked");
+                Navigation.findNavController(requireActivity(), R.id.nav_host_fragment)
+                        .navigate(R.id.action_nav_settings_to_injectKeyFragment);
+            } catch (Exception e) {
+                LogUtil.e(TAG, "Error navigating to inject key: " + e.getMessage());
+            }
+        }
+
         public void onDemoClick() {
             try {
                 boolean newValue = !SystemParamsOperation.getInstance().getDemoStatus();
diff --git a/app/src/main/java/com/utsmm/kbz/ui/core_viewmodel/SharedViewModel.java b/app/src/main/java/com/utsmm/kbz/ui/core_viewmodel/SharedViewModel.java
index 1a4d68e..0278f6e 100644
--- a/app/src/main/java/com/utsmm/kbz/ui/core_viewmodel/SharedViewModel.java
+++ b/app/src/main/java/com/utsmm/kbz/ui/core_viewmodel/SharedViewModel.java
@@ -307,6 +307,7 @@ public class SharedViewModel extends ViewModel {
 
 
 
+
     public void startPrintReceipt(boolean isFirstPrint) {
         /*
          *  First Print is Merchant Copy..
diff --git a/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java b/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
index f4f3269..245d21a 100644
--- a/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
+++ b/app/src/main/java/com/utsmm/kbz/util/EReceiptUtil.java
@@ -99,25 +99,38 @@ public class EReceiptUtil {
         EReceiptRequest request = new EReceiptRequest();
 
         request.setDE3(convertTransactionType(payDetail.getTransactionType()));
-
+        request.setDE7(currentTimeStamp);
+        request.setDE11(payDetail.getVoucherNo());
 
         if(payDetail.getTransactionType() == TransactionsType.SETTLEMENT.value) {
             SettleData settleData = payDetail.getSettleDataObj();
 
+            long totalAmt = settleData.getSaleAmount() + settleData.getRefundAmount() + settleData.getPreAuthCompAmount() + settleData.getCashAdvanceAmount();
+            double realTotalAmount = totalAmt / 100.0;
+            String totalAmount = df.format(realTotalAmount);
+            request.setDE4(totalAmount);
+
+
             request.setDE63_01(settleData.getSaleCount()+"");
             request.setDE63_02(settleData.getSaleAmount()+"");
             request.setDE63_03(settleData.getRefundCount()+"");
             request.setDE63_04(settleData.getRefundAmount()+"");
-
+            request.setDE63_05(settleData.getPreAuthCompCount()+"");
+            request.setDE63_06(settleData.getPreAuthCompAmount()+"");
+            request.setDE63_07(settleData.getCashAdvanceCount()+"");
+            request.setDE63_08(settleData.getCashAdvanceAmount()+"");
+            invoiceNo = SystemParamsOperation.getInstance().getIncrementInvoiceNum();
             request.setBatchNumber(batchNumber);
+            request.setInvoiceNumber(invoiceNo);
             request.setDescription("success");
             request.setDE39("A");
+            request.setDE37("0000");
+            request.setDE49("MMK");
         } else {
             request.setDE2(POSUtil.getInstance().getCardNumMasking(payDetail.getCardNo()));
 
             request.setDE4(amount);
-            request.setDE7(currentTimeStamp);
-            request.setDE11(payDetail.getVoucherNo());
+
 
             request.setDE37(payDetail.getReferNo());
             request.setDE38(payDetail.getApprovalCode());
diff --git a/app/src/main/res/layout/fragment_settings_modern.xml b/app/src/main/res/layout/fragment_settings_modern.xml
index 6323c42..d368232 100644
--- a/app/src/main/res/layout/fragment_settings_modern.xml
+++ b/app/src/main/res/layout/fragment_settings_modern.xml
@@ -235,6 +235,80 @@
 
                     </androidx.cardview.widget.CardView>
 
+                    <androidx.cardview.widget.CardView
+                        android:id="@+id/injectKeyCard"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_marginBottom="12dp"
+                        android:clickable="true"
+                        android:foreground="?android:attr/selectableItemBackground"
+                        android:onClick="@{()->click.onInjectKeyClick()}"
+                        app:cardBackgroundColor="@color/white"
+                        app:cardCornerRadius="16dp"
+                        app:cardElevation="2dp">
+
+                        <LinearLayout
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:orientation="horizontal"
+                            android:padding="20dp">
+
+                            <androidx.cardview.widget.CardView
+                                android:layout_width="48dp"
+                                android:layout_height="48dp"
+                                android:layout_marginEnd="16dp"
+                                app:cardBackgroundColor="@color/colorPrimary"
+                                app:cardCornerRadius="24dp"
+                                app:cardElevation="0dp">
+
+                                <ImageView
+                                    android:layout_width="24dp"
+                                    android:layout_height="24dp"
+                                    android:layout_gravity="center"
+                                    android:src="@drawable/ic_key_index"
+                                    app:tint="@color/white" />
+
+                            </androidx.cardview.widget.CardView>
+
+                            <LinearLayout
+                                android:layout_width="0dp"
+                                android:layout_height="wrap_content"
+                                android:layout_weight="1"
+                                android:orientation="vertical">
+
+                                <TextView
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:fontFamily="@font/rubik_medium"
+                                    android:text="Inject Key"
+                                    android:textColor="@color/colorTextTitle"
+                                    android:textSize="18sp"
+                                    android:textStyle="bold"
+                                    tools:fontFamily="sans-serif-medium" />
+
+                                <TextView
+                                    android:id="@+id/injectKeyText"
+                                    android:layout_width="wrap_content"
+                                    android:layout_height="wrap_content"
+                                    android:layout_marginTop="2dp"
+                                    android:fontFamily="@font/rubik_regular"
+                                    android:text="Click to inject"
+                                    android:textColor="@color/colorTextContent"
+                                    android:textSize="14sp"
+                                    tools:fontFamily="sans-serif" />
+
+                            </LinearLayout>
+
+                            <ImageView
+                                android:layout_width="20dp"
+                                android:layout_height="20dp"
+                                android:src="@drawable/ic_right_arrow"
+                                app:tint="@color/colorPrimary" />
+
+                        </LinearLayout>
+
+                    </androidx.cardview.widget.CardView>
 
 
 <!--                    &lt;!&ndash; Demo Mode Card &ndash;&gt;-->
diff --git a/app/src/main/res/navigation/mobile_navigation.xml b/app/src/main/res/navigation/mobile_navigation.xml
index ec311e3..b4dd36d 100644
--- a/app/src/main/res/navigation/mobile_navigation.xml
+++ b/app/src/main/res/navigation/mobile_navigation.xml
@@ -62,6 +62,9 @@
         <action
             android:id="@+id/action_nav_settings_to_deleteKeyFragment"
             app:destination="@id/deleteKeyFragment" />
+        <action
+            android:id="@+id/action_nav_settings_to_injectKeyFragment"
+            app:destination="@id/injectKeyFragment" />
 
     </fragment>
     <fragment
@@ -285,6 +288,12 @@
         android:name="com.utsmm.kbz.ui.settings.ConfigSettingsFragment"
         android:label="ConfigSettingsFragment" />
 
+    <fragment
+        android:id="@+id/injectKeyFragment"
+        android:name="com.utsmm.kbz.ui.settings.InjectKeyFragment"
+        android:label="InjectKeyFragment"
+        tools:layout="@layout/fragment_inject_key" />
+
     <fragment
         tools:layout="@layout/fragment_password_screen"
         android:id="@+id/inputPasswordFragment"
diff --git a/baselib/build.gradle b/baselib/build.gradle
index a9136d6..44f6b3a 100644
--- a/baselib/build.gradle
+++ b/baselib/build.gradle
@@ -84,6 +84,7 @@ dependencies {
     implementation project(path: ':paysdk-lib')
     implementation project(path: ':nexsdk-lib')
     implementation project(path: ':xpay')
+    implementation project(path: ':nexdlkey-lib')
 
 //    implementation 'com.sunmi:printerlibrary:1.0.9'
     implementation 'com.sunmi:printerlibrary:1.0.23'
diff --git a/baselib/src/main/java/com/utsmyanmar/baselib/network/model/e_receipt/EReceiptRequest.java b/baselib/src/main/java/com/utsmyanmar/baselib/network/model/e_receipt/EReceiptRequest.java
index 2d23f59..bd35d63 100644
--- a/baselib/src/main/java/com/utsmyanmar/baselib/network/model/e_receipt/EReceiptRequest.java
+++ b/baselib/src/main/java/com/utsmyanmar/baselib/network/model/e_receipt/EReceiptRequest.java
@@ -21,6 +21,10 @@ public class EReceiptRequest {
     private String DE63_02;
     private String DE63_03;
     private String DE63_04;
+    private String DE63_05;
+    private String DE63_06;
+    private String DE63_07;
+    private String DE63_08;
     private String serial;
 
     private String appId;
@@ -120,6 +124,32 @@ public class EReceiptRequest {
         return batchNumber;
     }
 
+    public String getDE63_05() {
+        return DE63_05;
+    }
+    public String getDE63_06() {
+        return DE63_06;
+    }
+    public String getDE63_07() {
+        return DE63_07;
+    }
+    public String getDE63_08() {
+        return DE63_08;
+    }
+    public void setDE63_05(String DE63_05) {
+        this.DE63_05 = DE63_05;
+    }
+    public void setDE63_06(String DE63_06) {
+        this.DE63_06 = DE63_06;
+    }
+    public void setDE63_07(String DE63_07) {
+        this.DE63_07 = DE63_07;
+    }
+
+    public void setDE63_08(String DE63_08) {
+        this.DE63_08 = DE63_08;
+    }
+
     public void setBatchNumber(String batchNumber) {
         this.batchNumber = batchNumber;
     }
diff --git a/paylibs/build.gradle b/paylibs/build.gradle
index bfa5250..9ee8a54 100644
--- a/paylibs/build.gradle
+++ b/paylibs/build.gradle
@@ -63,6 +63,7 @@ dependencies {
 //    implementation project(path:':PayLib-release-1.4.58')
     implementation project(path: ':nexsdk-lib')
     implementation project(path: ':paysdk-lib')
+    implementation project(path: ':nexdlkey-lib')
 //    implementation project(path: ':sunmiui-lib')
 
     testImplementation 'junit:junit:4.13.2'
diff --git a/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java b/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
index d58d34b..2cc6f82 100644
--- a/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
+++ b/paylibs/src/main/java/com/utsmyanmar/paylibs/print/printx/BaseXPrint.java
@@ -9,6 +9,7 @@ import android.os.Build;
 import android.os.RemoteException;
 import android.text.TextUtils;
 
+import com.nexgo.oaf.apiv3.SdkResult;
 import com.nexgo.oaf.apiv3.device.printer.AlignEnum;
 import com.nexgo.oaf.apiv3.device.printer.DotMatrixFontEnum;
 import com.nexgo.oaf.apiv3.device.printer.FontEntity;
@@ -847,6 +848,11 @@ public abstract class BaseXPrint {
     }
 
     protected void startPrintNex() {
+
+        if(printer.getStatus() != SdkResult.Success) {
+            callbackStatus.onFailure();
+        }
+
         printer.startPrint(true, new OnPrintListener() {
             @Override
             public void onPrintResult(final int retCode) {
diff --git a/settings.gradle b/settings.gradle
index b44965f..0258d86 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -33,3 +33,4 @@ include ':xpay'
 include ':ecr'
 include ':ecr-service-lib'
 include ':qrgen-lib'
+include ':nexdlkey-lib'