diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/login/fragment/LoginFragment.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/login/fragment/LoginFragment.kt
index 886e9cb7..b7528934 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/login/fragment/LoginFragment.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/login/fragment/LoginFragment.kt
@@ -8,7 +8,9 @@ import android.content.SharedPreferences
 import android.content.pm.PackageInfo
 import android.content.pm.PackageManager
 import android.net.Uri
+import android.os.Environment
 import android.provider.Settings
+import android.util.Log.d
 import android.view.View
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -27,6 +29,8 @@ import es.verdnatura.presentation.view.component.CustomDialogList
 import es.verdnatura.presentation.view.feature.login.adapter.WorkFormAdapter
 import es.verdnatura.presentation.view.feature.login.model.WorkForms
 import es.verdnatura.presentation.view.feature.main.activity.MainActivity
+import java.io.File
+import java.util.*
 import kotlin.system.exitProcess
 
 
@@ -50,6 +54,7 @@ class LoginFragment : BaseFragment<FragmentLoginBinding, LoginViewModel>(LoginVi
         customDialog = CustomDialog(requireContext())
         saveIdentifiers()
         checkUser()
+        createFolderSerial()
         binding.buttonLogin.setOnClickListener {
             binding.splashProgress.visibility = View.VISIBLE
             viewModel.loginSalix(
@@ -88,6 +93,25 @@ class LoginFragment : BaseFragment<FragmentLoginBinding, LoginViewModel>(LoginVi
 
     }
 
+    private fun createFolderSerial() {
+
+        val directory = File(
+            requireContext().getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS),
+            "/dataSerial"
+        )
+        if (!directory.exists()) {
+            directory.mkdirs()
+        }
+        try {
+            val filename = "serie.txt"
+            val file = File(directory, filename)
+            saveData("serial", file.readText())
+        } catch (ex: Exception) {
+            ""
+        }
+
+    }
+
     private fun setAdapter(listWorkForms: List<WorkForms>) {
 
         workFormAdapter = WorkFormAdapter(listWorkForms, object : OnWorkFormsItemRowClickListener {
@@ -246,7 +270,7 @@ class LoginFragment : BaseFragment<FragmentLoginBinding, LoginViewModel>(LoginVi
                                     openURL.data =
                                         Uri.parse(it.url)
                                     startActivity(openURL)
-                                }catch (ex:Exception){
+                                } catch (ex:Exception) {
                                     getString(R.string.problemUpdate).toast(requireActivity())
                                 }
 
diff --git a/app/src/main/java/es/verdnatura/presentation/view/feature/main/activity/MainActivity.kt b/app/src/main/java/es/verdnatura/presentation/view/feature/main/activity/MainActivity.kt
index 1d0ce9a5..198bce49 100644
--- a/app/src/main/java/es/verdnatura/presentation/view/feature/main/activity/MainActivity.kt
+++ b/app/src/main/java/es/verdnatura/presentation/view/feature/main/activity/MainActivity.kt
@@ -845,6 +845,19 @@ class MainActivity : BaseActivity<ActivityMainBinding>(), OnPasillerosItemClickL
 
 
     }
+    override fun onUserInteraction() {
+        super.onUserInteraction()
 
+        if ((System.currentTimeMillis() / 1000 / 60 / 60) - miTime > 4) {
+            miTime = System.currentTimeMillis() / 1000 / 60 / 60
+            val loginViewModel: LoginViewModel by viewModel()
+            loginViewModel.deviceLog_add(
+                getString(R.string.logAppName),
+                "14.1Beta",
+                "android_id"
+            )
+        }
+
+    }
 
 }