diff --git a/app-unpriv/src/main/java/im/angry/openeuicc/util/SIMToolkit.kt b/app-unpriv/src/main/java/im/angry/openeuicc/util/SIMToolkit.kt
index 516841f..254b31f 100644
--- a/app-unpriv/src/main/java/im/angry/openeuicc/util/SIMToolkit.kt
+++ b/app-unpriv/src/main/java/im/angry/openeuicc/util/SIMToolkit.kt
@@ -3,7 +3,6 @@ package im.angry.openeuicc.util
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
-import android.content.pm.ActivityInfo
 import android.content.pm.PackageManager
 import android.net.Uri
 import android.provider.Settings
@@ -30,35 +29,34 @@ class SIMToolkit(private val context: Context) {
     }
 
     data class Slot(private val context: Context, private val components: Set<ComponentName>) {
-        private val packageManager: PackageManager
-            get() = context.packageManager
-
         private val packageNames: Iterable<String>
-            get() = components.map(ComponentName::getPackageName).toSet()
+            get() = components.map { it.packageName }.toSet()
 
         private val launchIntent: Intent?
-            get() = packageNames.firstNotNullOfOrNull(packageManager::getLaunchIntent)
+            get() = packageNames.firstNotNullOfOrNull(context.packageManager::getLaunchIntent)
 
         private val activities: Iterable<ComponentName>
-            get() = packageNames.flatMap(packageManager::getActivities)
-                .filter(ActivityInfo::exported).map { ComponentName(it.packageName, it.name) }
+            get() = packageNames.flatMap(context.packageManager::getActivities)
+                .filter { it.exported }.map { ComponentName(it.packageName, it.name) }
 
         val available: Boolean
             get() = getIntent() != null || getDisabledPackageName() != null
 
         private fun getIntent(): Intent? {
-            for (activity in activities) {
-                if (!components.contains(activity)) continue
-                if (isDisabledState(packageManager.getComponentEnabledSetting(activity))) continue
-                return Intent.makeMainActivity(activity)
+            try {
+                val component = components.find(activities::contains) ?: return launchIntent
+                if (isDisabledState(context.packageManager.getComponentEnabledSetting(component)))
+                    return null
+                return Intent.makeMainActivity(component)
+            } catch (e: IllegalArgumentException) {
+                return null
             }
-            return launchIntent
         }
 
         private fun getDisabledPackageName() = packageNames.find {
             try {
-                isDisabledState(packageManager.getApplicationEnabledSetting(it))
-            } catch (_: IllegalArgumentException) {
+                isDisabledState(context.packageManager.getApplicationEnabledSetting(it))
+            } catch (e: IllegalArgumentException) {
                 false
             }
         }
@@ -69,7 +67,7 @@ class SIMToolkit(private val context: Context) {
                 val pkgName = getDisabledPackageName() ?: return false
                 val message = context.getString(
                     R.string.toast_prompt_to_enable_sim_toolkit,
-                    packageManager.getApplicationLabel(pkgName)
+                    context.packageManager.getApplicationLabel(pkgName)
                 )
                 intent = Intent(
                     Settings.ACTION_APPLICATION_DETAILS_SETTINGS,