diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/delivery/fragments/LoadUnloadFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/delivery/fragments/LoadUnloadFragment.kt
index 2cb58f29..b7553d76 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/delivery/fragments/LoadUnloadFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/delivery/fragments/LoadUnloadFragment.kt
@@ -3,12 +3,10 @@ package es.verdnatura.presentation.view.feature.delivery.fragments
 import android.content.Context
 import android.content.Intent
 import android.graphics.drawable.Drawable
-import android.os.Build
 import android.view.View
 import android.view.inputmethod.EditorInfo
 import android.widget.ImageView
 import android.widget.Toast
-import androidx.annotation.RequiresApi
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
 import es.verdnatura.R
@@ -69,12 +67,12 @@ class LoadUnloadFragment(
 
     override fun getLayoutId(): Int = R.layout.fragment_expedition_loadunload_delivery
 
-    @RequiresApi(Build.VERSION_CODES.O)
     override fun init() {
         try {
             route = JSONObject(entryPoint).get("route").toString().toInt()
             addressFk = JSONObject(entryPoint).get("address").toString().toInt()
         } catch (ex: Exception) {
+            ex.message.toString().toast(requireContext())
         }
         setEvents()
         setToolBar()
@@ -89,7 +87,6 @@ class LoadUnloadFragment(
         db = database(requireContext().applicationContext)
     }
 
-    @RequiresApi(Build.VERSION_CODES.O)
     private fun setToolBar() {
         ma.hideBottomNavigation(View.GONE)
         binding.mainToolbar.toolbarTitle.visibility = View.VISIBLE
@@ -110,10 +107,7 @@ class LoadUnloadFragment(
         iconConfirm.setImageResource(R.drawable.ic_confirm)
         iconSign.setImageResource(R.drawable.ic_sign)
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            iconConfirm.tooltipText = getTooltip(R.drawable.ic_confirm)
-        }
-
+        iconConfirm.tooltipText = getTooltip(R.drawable.ic_confirm)
         listIcons.add(
             if (state == "DELIVERED") {
                 iconSign
@@ -162,7 +156,7 @@ class LoadUnloadFragment(
 
     private fun setExpeditionsState(list: MutableList<ExpeditionInfoLoadUnload>, state: String) {
         scanning(false)
-        var mlist = mutableListOf<ExpeditionSalix>()
+        val mlist = mutableListOf<ExpeditionSalix>()
         for (l in list) {
             mlist.add(
                 ExpeditionSalix(
@@ -174,8 +168,8 @@ class LoadUnloadFragment(
                 )
             )
         }
-        var expeditionBack = hashMapOf("expeditions" to mlist as List<ExpeditionSalix>)
-        if (list.filter { it.code == state }.isNotEmpty()) {
+        val expeditionBack = hashMapOf("expeditions" to mlist as List<ExpeditionSalix>)
+        if (list.any { it.code == state }) {
             if (list.filter { it.code == state }.size == list.size) {
                 viewModel.expeditionStateAddSalix(expeditionBack)
                 counterCalls = 1
@@ -185,19 +179,27 @@ class LoadUnloadFragment(
                 alertDialog.setMessage(getString(R.string.expeditionTotal))
                 alertDialog.setButton(
                     android.app.AlertDialog.BUTTON_NEUTRAL, getString(R.string.save)
-                ) { dialog, which ->
+                ) { _, _ ->
                     counterCalls = 1
                     viewModel.expeditionStateAddSalix(expeditionBack)
                 }
                 alertDialog.setButton(
                     android.app.AlertDialog.BUTTON_POSITIVE, getString(R.string.ordenar)
-                ) { dialog, which ->
+                ) { _, _ ->
                     createList(list.sortedByDescending { it.code } as MutableList<ExpeditionInfoLoadUnload>)
                 }
                 alertDialog.show()
             }
         } else {
-            openSignActivity()
+            val alertDialog = android.app.AlertDialog.Builder(requireContext()).create()
+            alertDialog.setTitle(getString(R.string.info))
+            alertDialog.setMessage(getString(R.string.scanForSign))
+            alertDialog.setButton(
+                android.app.AlertDialog.BUTTON_NEUTRAL, getString(R.string.accept)
+            ) { _, _ ->
+                alertDialog.dismiss()
+            }
+            alertDialog.show()
 
         }
 
@@ -222,7 +224,7 @@ class LoadUnloadFragment(
         }
 
         binding.scanInput.setOnEditorActionListener { _, actionId, _ ->
-            if (actionId == EditorInfo.IME_ACTION_SEARCH || actionId == EditorInfo.IME_ACTION_DONE || actionId == 0 || actionId == EditorInfo.IME_ACTION_NEXT || actionId == EditorInfo.IME_ACTION_UNSPECIFIED) {
+            if (actionId == EditorInfo.IME_ACTION_SEARCH || actionId == EditorInfo.IME_ACTION_DONE || actionId == 0 || actionId == EditorInfo.IME_ACTION_NEXT) {
 
                 if (!binding.scanInput.text.isNullOrEmpty()) {
 
@@ -264,7 +266,7 @@ class LoadUnloadFragment(
 
         var found = false
 
-        if (myList.filter { it.id == expedNumber }.filter { it.code == state }.isNotEmpty()) {
+        if (myList.filter { it.id == expedNumber }.any { it.code == state }) {
             ma.messageWithSound(getString(R.string.expeditionMarked), null, true)
         } else {
             for (exped in myList) {
@@ -275,10 +277,15 @@ class LoadUnloadFragment(
                 }
             }
             if (found) {
-                ma.messageWithSound("", false, true, isToasted = false)
+                ma.messageWithSound(
+                    message = "",
+                    isError = false,
+                    isPlayed = true,
+                    isToasted = false
+                )
                 scanning(true)
             } else {
-                ma.messageWithSound("", true, true, isToasted = null)
+                ma.messageWithSound("", isError = true, isPlayed =  true, isToasted = null)
             }
         }
 
@@ -295,7 +302,6 @@ class LoadUnloadFragment(
         }
     }
 
-    @RequiresApi(Build.VERSION_CODES.O)
     override fun observeViewModel() {
         with(viewModel) {
             expeditionInfoLoadUnloadList.observe(viewLifecycleOwner) {
@@ -313,7 +319,7 @@ class LoadUnloadFragment(
             }
             responseStateAdd.observe(viewLifecycleOwner) {
                 if (!it.isError) {
-                    counterResponse = counterResponse + 1
+                    counterResponse += 1
                     if (counterResponse == counterCalls) {
                         if (!binding.mainToolbar.switchButton.isChecked) {
                             if (state == "DELIVERED") {
@@ -328,13 +334,13 @@ class LoadUnloadFragment(
                         counterCalls = 0
                     }
                 } else {
-                    ma.messageWithSound(it.errorMessage, true, true, "Error", true)
+                    ma.messageWithSound(it.errorMessage, isError = true, isPlayed = true, titleWithError = "Error", isToasted = true)
                     openSignActivity()
                 }
 
             }
             responseStateList.observe(viewLifecycleOwner) {
-                ma.messageWithSound(it.errorMessage, true, true, "", true)
+                ma.messageWithSound(it.errorMessage, isError = true, isPlayed = true, titleWithError = "", isToasted = true)
                 savePendingExpeditions()
                 openSignActivity()
             }
@@ -349,7 +355,7 @@ class LoadUnloadFragment(
         lifecycleScope.launch {
             withContext(Dispatchers.IO) {
 
-                var myListPending = myList.map { item ->
+                val myListPending = myList.map { item ->
                     ExpeditionInfoPending(
                         id = item.id,
                         ticketFk = item.ticketFk,
@@ -375,10 +381,9 @@ class LoadUnloadFragment(
 
     }
 
-    @RequiresApi(Build.VERSION_CODES.O)
     private fun setSwitchButon() {
         binding.mainToolbar.switchButton.tooltipText = getString(R.string.expeditionMarkLost)
-        binding.mainToolbar.switchButton.setOnCheckedChangeListener { buttonView, isChecked ->
+        binding.mainToolbar.switchButton.setOnCheckedChangeListener { _, isChecked ->
             binding.mainToolbar.switchButton.tooltipText =
                 if (isChecked) getString(R.string.expeditionMarkFound) else getString(R.string.expeditionMarkLost)