diff --git a/app/build.gradle b/app/build.gradle
index 005cf3d..06a8859 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,11 +16,11 @@ android {
 
     // prod - production, preprod - preproduction, quality - qc
     defaultConfig {
-        applicationId "in.sminnovations.hpostesting"
+        applicationId "in.sminnovations.hpostesting.preprod"
         minSdk 21
         targetSdk 34
-        versionCode 56
-        versionName "2.1.56"
+        versionCode 26
+        versionName "2.1.26"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -83,7 +83,7 @@ dependencies {
     implementation 'androidx.preference:preference-ktx:1.2.1'
     implementation 'androidx.preference:preference-ktx:1.2.1'
     implementation 'com.google.android.play:core:1.10.3'
-
+    implementation 'io.nats:jnats:2.11.2'
 
 
 
@@ -138,4 +138,6 @@ dependencies {
 
     implementation "androidx.preference:preference-ktx:1.2.1"
     implementation 'io.nats:jnats:2.11.2'
+    implementation 'com.google.android.play:core:1.10.3'
+
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 61c85a5..c5913bd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -5,6 +5,8 @@
     <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+
     <uses-permission
         android:name="android.permission.BATTERY_STATS"
         tools:ignore="ProtectedPermissions" />
@@ -62,7 +64,17 @@
             android:exported="false"
             android:label="@string/title_activity_dashboard"
             android:theme="@style/Theme.HPOS.NoActionBar"
-            tools:ignore="MissingClass" />
+            tools:ignore="AppLinkUrlError,MissingClass">
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="content" />
+                <data android:scheme="file" />
+                <data android:mimeType="application/vnd.android.package-archive" />
+            </intent-filter>
+        </activity>
+
 
         <service
             android:name="com.example.hpostesting.presentation.testRight.UsbService"
@@ -114,6 +126,17 @@
             android:screenOrientation="portrait"
             android:stateNotNeeded="true"
             tools:replace="android:screenOrientation" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="in.sminnovations.hpostesting.preprod.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/com/example/hpostesting/presentation/dashboard/DashboardActivity.kt b/app/src/main/java/com/example/hpostesting/presentation/dashboard/DashboardActivity.kt
index 584138a..88ee490 100644
--- a/app/src/main/java/com/example/hpostesting/presentation/dashboard/DashboardActivity.kt
+++ b/app/src/main/java/com/example/hpostesting/presentation/dashboard/DashboardActivity.kt
@@ -1,10 +1,20 @@
 package com.example.hpostesting.presentation.dashboard
 
+import android.app.DownloadManager
+import android.content.BroadcastReceiver
 import android.content.Context
+import android.content.Intent
+import android.content.Intent.ACTION_INSTALL_PACKAGE
+import android.content.IntentFilter
+import android.content.pm.PackageManager
+import android.content.pm.ResolveInfo
+import android.net.Uri
 import android.os.Bundle
+import android.util.Log
 import android.view.Menu
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.FileProvider
 import androidx.drawerlayout.widget.DrawerLayout
 import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
@@ -13,22 +23,21 @@ import androidx.navigation.ui.setupActionBarWithNavController
 import androidx.navigation.ui.setupWithNavController
 import com.example.hpostesting.data.constant.LanguageManager
 import com.google.android.material.navigation.NavigationView
-import com.google.android.play.core.appupdate.AppUpdateManager
-import com.google.android.play.core.appupdate.AppUpdateManagerFactory
+
 import com.google.firebase.appdistribution.FirebaseAppDistribution
 import com.google.firebase.appdistribution.FirebaseAppDistributionException
 import com.google.firebase.crashlytics.FirebaseCrashlytics
 import dagger.hilt.android.AndroidEntryPoint
 import `in`.sminnovations.hpostesting.R
 import `in`.sminnovations.hpostesting.databinding.ActivityDashboardBinding
+import java.io.File
 
 @AndroidEntryPoint
 class DashboardActivity : AppCompatActivity() {
 
     private lateinit var appBarConfiguration: AppBarConfiguration
     private lateinit var binding: ActivityDashboardBinding
-    val appUpdateManager: AppUpdateManager = AppUpdateManagerFactory.create(applicationContext)
-    val appUpdateInfoTask = appUpdateManager.appUpdateInfo
+    private var downloadId: Long = 0
     override fun attachBaseContext(newBase: Context?) {
         val languageCode = LanguageManager.getSavedLanguage(newBase!!)
         LanguageManager.setLocale(newBase, languageCode)
@@ -41,7 +50,7 @@ class DashboardActivity : AppCompatActivity() {
         binding = ActivityDashboardBinding.inflate(layoutInflater)
         setContentView(binding.root)
         setSupportActionBar(binding.appBarDashboard.toolbar)
-
+        initiateUpdate()
         val drawerLayout: DrawerLayout = binding.drawerLayout
         val navView: NavigationView = binding.navView
         val navController = findNavController(R.id.nav_host_fragment_content_dashboard)
@@ -67,6 +76,64 @@ class DashboardActivity : AppCompatActivity() {
         return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()
     }
 
+    private fun initiateUpdate() {
+        val apkUrl = "https://www.dropbox.com/scl/fi/v0hux8qrby54rjns8mhum/hpos-testing_preprod_2.1.27.apk?rlkey=ias0fe0zq72avy01rk4cvzmvp&dl=1"
+
+        val request = DownloadManager.Request(Uri.parse(apkUrl))
+        request.setTitle("App Update")
+        request.setDescription("Downloading update...")
+        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED)
+        request.setDestinationInExternalFilesDir(this, "Updates", "update.apk")
+
+        val downloadManager = getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
+        downloadId = downloadManager.enqueue(request)
+
+        // Register a BroadcastReceiver to receive the download complete event
+        val filter = IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE)
+        registerReceiver(downloadReceiver, filter)
+    }
+
+    private val downloadReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            val id = intent?.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1)
+            if (id == downloadId) {
+                // Install the downloaded APK
+                installApk()
+            }
+        }
+    }
+
+    private fun installApk() {
+        val file = File(getExternalFilesDir("Updates"), "update.apk")
+        file.setReadable(true, false) // Ensure the file is readable
+
+        val uri: Uri = FileProvider.getUriForFile(
+            this,
+            "in.sminnovations.hpostesting.preprod.fileprovider",
+            file
+        )
+
+        // Create an intent to install the APK
+        val installIntent = Intent(Intent.ACTION_INSTALL_PACKAGE)
+        installIntent.data = uri
+        installIntent.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION or
+                Intent.FLAG_ACTIVITY_NEW_TASK or
+                Intent.FLAG_ACTIVITY_CLEAR_TOP
+        installIntent.putExtra(Intent.EXTRA_NOT_UNKNOWN_SOURCE, true)
+
+        // Start the installation
+        startActivity(installIntent)
+
+        Log.d("InstallApk", "Install Intent URI: $uri")
+        Log.d("InstallApk", "Package Name: $packageName")
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        unregisterReceiver(downloadReceiver)
+    }
+
+
     override fun onResume() {
         super.onResume()
 
@@ -106,4 +173,7 @@ class DashboardActivity : AppCompatActivity() {
 //                Toast.makeText(this, "App Update: Success!", Toast.LENGTH_SHORT).show()
             }
     }
+
+
+
 }
\ No newline at end of file
diff --git a/app/src/main/res/xml/file_paths.xml b/app/src/main/res/xml/file_paths.xml
new file mode 100644
index 0000000..6e9c380
--- /dev/null
+++ b/app/src/main/res/xml/file_paths.xml
@@ -0,0 +1,3 @@
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external-files-path name="Updates" path="." />
+</paths>