diff --git a/vector/src/fdroid/java/im/vector/app/fdroid/BackgroundSyncStarter.kt b/vector/src/fdroid/java/im/vector/app/fdroid/BackgroundSyncStarter.kt
index e2ac4f8822..eaa3d57d42 100644
--- a/vector/src/fdroid/java/im/vector/app/fdroid/BackgroundSyncStarter.kt
+++ b/vector/src/fdroid/java/im/vector/app/fdroid/BackgroundSyncStarter.kt
@@ -23,14 +23,14 @@ import im.vector.app.fdroid.receiver.AlarmSyncBroadcastReceiver
 import im.vector.app.features.settings.BackgroundSyncMode
 import im.vector.app.features.settings.VectorPreferences
 import timber.log.Timber
+import javax.inject.Inject
 
-object BackgroundSyncStarter {
-    fun start(
-            context: Context,
-            vectorPreferences: VectorPreferences,
-            activeSessionHolder: ActiveSessionHolder,
-            clock: Clock
-    ) {
+class BackgroundSyncStarter @Inject constructor(
+        private val context: Context,
+        private val vectorPreferences: VectorPreferences,
+        private val clock: Clock
+) {
+    fun start(activeSessionHolder: ActiveSessionHolder) {
         if (vectorPreferences.areNotificationEnabledForDevice()) {
             val activeSession = activeSessionHolder.getSafeActiveSession() ?: return
             when (vectorPreferences.getFdroidSyncBackgroundMode()) {
diff --git a/vector/src/fdroid/java/im/vector/app/fdroid/receiver/OnApplicationUpgradeOrRebootReceiver.kt b/vector/src/fdroid/java/im/vector/app/fdroid/receiver/OnApplicationUpgradeOrRebootReceiver.kt
index aacd7723f5..f22aafbeb4 100644
--- a/vector/src/fdroid/java/im/vector/app/fdroid/receiver/OnApplicationUpgradeOrRebootReceiver.kt
+++ b/vector/src/fdroid/java/im/vector/app/fdroid/receiver/OnApplicationUpgradeOrRebootReceiver.kt
@@ -20,20 +20,20 @@ package im.vector.app.fdroid.receiver
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import im.vector.app.core.extensions.singletonEntryPoint
+import dagger.hilt.android.AndroidEntryPoint
+import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.fdroid.BackgroundSyncStarter
 import timber.log.Timber
+import javax.inject.Inject
 
+@AndroidEntryPoint
 class OnApplicationUpgradeOrRebootReceiver : BroadcastReceiver() {
 
+    @Inject lateinit var activeSessionHolder: ActiveSessionHolder
+    @Inject lateinit var backgroundSyncStarter: BackgroundSyncStarter
+
     override fun onReceive(context: Context, intent: Intent) {
         Timber.v("## onReceive() ${intent.action}")
-        val singletonEntryPoint = context.singletonEntryPoint()
-        BackgroundSyncStarter.start(
-                context,
-                singletonEntryPoint.vectorPreferences(),
-                singletonEntryPoint.activeSessionHolder(),
-                singletonEntryPoint.clock()
-        )
+        backgroundSyncStarter.start(activeSessionHolder)
     }
 }
diff --git a/vector/src/fdroid/java/im/vector/app/push/fcm/FcmHelper.kt b/vector/src/fdroid/java/im/vector/app/push/fcm/FcmHelper.kt
index 388521a96d..24ff00a353 100755
--- a/vector/src/fdroid/java/im/vector/app/push/fcm/FcmHelper.kt
+++ b/vector/src/fdroid/java/im/vector/app/push/fcm/FcmHelper.kt
@@ -21,15 +21,17 @@ import android.app.Activity
 import android.content.Context
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.pushers.PushersManager
-import im.vector.app.core.time.Clock
 import im.vector.app.fdroid.BackgroundSyncStarter
 import im.vector.app.fdroid.receiver.AlarmSyncBroadcastReceiver
-import im.vector.app.features.settings.VectorPreferences
+import javax.inject.Inject
 
 /**
  * This class has an alter ego in the gplay variant.
  */
-object FcmHelper {
+class FcmHelper @Inject constructor(
+        private val context: Context,
+        private val backgroundSyncStarter: BackgroundSyncStarter,
+) {
 
     fun isFirebaseAvailable(): Boolean = false
 
@@ -38,17 +40,16 @@ object FcmHelper {
      *
      * @return the FCM token or null if not received from FCM
      */
-    fun getFcmToken(context: Context): String? {
+    fun getFcmToken(): String? {
         return null
     }
 
     /**
      * Store FCM token to the SharedPrefs
      *
-     * @param context android context
      * @param token the token to store
      */
-    fun storeFcmToken(context: Context, token: String?) {
+    fun storeFcmToken(token: String?) {
         // No op
     }
 
@@ -61,18 +62,13 @@ object FcmHelper {
         // No op
     }
 
-    fun onEnterForeground(context: Context, activeSessionHolder: ActiveSessionHolder) {
+    fun onEnterForeground(activeSessionHolder: ActiveSessionHolder) {
         // try to stop all regardless of background mode
         activeSessionHolder.getSafeActiveSession()?.syncService()?.stopAnyBackgroundSync()
         AlarmSyncBroadcastReceiver.cancelAlarm(context)
     }
 
-    fun onEnterBackground(
-            context: Context,
-            vectorPreferences: VectorPreferences,
-            activeSessionHolder: ActiveSessionHolder,
-            clock: Clock
-    ) {
-        BackgroundSyncStarter.start(context, vectorPreferences, activeSessionHolder, clock)
+    fun onEnterBackground(activeSessionHolder: ActiveSessionHolder) {
+        backgroundSyncStarter.start(activeSessionHolder)
     }
 }
diff --git a/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestFirebaseToken.kt b/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestFirebaseToken.kt
index 5a9dc90ec4..e7e3157f6b 100644
--- a/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestFirebaseToken.kt
+++ b/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestFirebaseToken.kt
@@ -32,7 +32,8 @@ import javax.inject.Inject
  */
 class TestFirebaseToken @Inject constructor(
         private val context: FragmentActivity,
-        private val stringProvider: StringProvider
+        private val stringProvider: StringProvider,
+        private val fcmHelper: FcmHelper,
 ) : TroubleshootTest(R.string.settings_troubleshoot_test_fcm_title) {
 
     override fun perform(activityResultLauncher: ActivityResultLauncher<Intent>) {
@@ -68,7 +69,7 @@ class TestFirebaseToken @Inject constructor(
                                 description = stringProvider.getString(R.string.settings_troubleshoot_test_fcm_success, tok)
                                 Timber.e("Retrieved FCM token success [$tok].")
                                 // Ensure it is well store in our local storage
-                                FcmHelper.storeFcmToken(context, token)
+                                fcmHelper.storeFcmToken(token)
                             }
                             status = TestStatus.SUCCESS
                         }
diff --git a/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestTokenRegistration.kt b/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestTokenRegistration.kt
index a6220c2018..8c21404d20 100644
--- a/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestTokenRegistration.kt
+++ b/vector/src/gplay/java/im/vector/app/gplay/features/settings/troubleshoot/TestTokenRegistration.kt
@@ -37,13 +37,14 @@ class TestTokenRegistration @Inject constructor(
         private val context: FragmentActivity,
         private val stringProvider: StringProvider,
         private val pushersManager: PushersManager,
-        private val activeSessionHolder: ActiveSessionHolder
+        private val activeSessionHolder: ActiveSessionHolder,
+        private val fcmHelper: FcmHelper,
 ) :
         TroubleshootTest(R.string.settings_troubleshoot_test_token_registration_title) {
 
     override fun perform(activityResultLauncher: ActivityResultLauncher<Intent>) {
         // Check if we have a registered pusher for this token
-        val fcmToken = FcmHelper.getFcmToken(context) ?: run {
+        val fcmToken = fcmHelper.getFcmToken() ?: run {
             status = TestStatus.FAILED
             return
         }
diff --git a/vector/src/gplay/java/im/vector/app/push/fcm/FcmHelper.kt b/vector/src/gplay/java/im/vector/app/push/fcm/FcmHelper.kt
index cb569d9c16..a4eb9efc73 100755
--- a/vector/src/gplay/java/im/vector/app/push/fcm/FcmHelper.kt
+++ b/vector/src/gplay/java/im/vector/app/push/fcm/FcmHelper.kt
@@ -26,16 +26,21 @@ import im.vector.app.R
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.di.DefaultSharedPreferences
 import im.vector.app.core.pushers.PushersManager
-import im.vector.app.core.time.Clock
-import im.vector.app.features.settings.VectorPreferences
 import timber.log.Timber
+import javax.inject.Inject
 
 /**
  * This class store the FCM token in SharedPrefs and ensure this token is retrieved.
  * It has an alter ego in the fdroid variant.
  */
-object FcmHelper {
-    private val PREFS_KEY_FCM_TOKEN = "FCM_TOKEN"
+class FcmHelper @Inject constructor(
+        context: Context,
+) {
+    companion object {
+        private const val PREFS_KEY_FCM_TOKEN = "FCM_TOKEN"
+    }
+
+    private val sharedPrefs = DefaultSharedPreferences.getInstance(context)
 
     fun isFirebaseAvailable(): Boolean = true
 
@@ -44,22 +49,18 @@ object FcmHelper {
      *
      * @return the FCM token or null if not received from FCM
      */
-    fun getFcmToken(context: Context): String? {
-        return DefaultSharedPreferences.getInstance(context).getString(PREFS_KEY_FCM_TOKEN, null)
+    fun getFcmToken(): String? {
+        return sharedPrefs.getString(PREFS_KEY_FCM_TOKEN, null)
     }
 
     /**
      * Store FCM token to the SharedPrefs
      * TODO Store in realm
      *
-     * @param context android context
      * @param token the token to store
      */
-    fun storeFcmToken(
-            context: Context,
-            token: String?
-    ) {
-        DefaultSharedPreferences.getInstance(context).edit {
+    fun storeFcmToken(token: String?) {
+        sharedPrefs.edit {
             putString(PREFS_KEY_FCM_TOKEN, token)
         }
     }
@@ -76,7 +77,7 @@ object FcmHelper {
             try {
                 FirebaseMessaging.getInstance().token
                         .addOnSuccessListener { token ->
-                            storeFcmToken(activity, token)
+                            storeFcmToken(token)
                             if (registerPusher) {
                                 pushersManager.enqueueRegisterPusherWithFcmKey(token)
                             }
@@ -98,24 +99,19 @@ object FcmHelper {
      * it doesn't, display a dialog that allows users to download the APK from
      * the Google Play Store or enable it in the device's system settings.
      */
-    fun checkPlayServices(context: Context): Boolean {
+    private fun checkPlayServices(context: Context): Boolean {
         val apiAvailability = GoogleApiAvailability.getInstance()
         val resultCode = apiAvailability.isGooglePlayServicesAvailable(context)
         return resultCode == ConnectionResult.SUCCESS
     }
 
     @Suppress("UNUSED_PARAMETER")
-    fun onEnterForeground(context: Context, activeSessionHolder: ActiveSessionHolder) {
+    fun onEnterForeground(activeSessionHolder: ActiveSessionHolder) {
         // No op
     }
 
     @Suppress("UNUSED_PARAMETER")
-    fun onEnterBackground(
-            context: Context,
-            vectorPreferences: VectorPreferences,
-            activeSessionHolder: ActiveSessionHolder,
-            clock: Clock
-    ) {
+    fun onEnterBackground(activeSessionHolder: ActiveSessionHolder) {
         // No op
     }
 }
diff --git a/vector/src/main/java/im/vector/app/VectorApplication.kt b/vector/src/main/java/im/vector/app/VectorApplication.kt
index 7db0f99f5f..e888a257ef 100644
--- a/vector/src/main/java/im/vector/app/VectorApplication.kt
+++ b/vector/src/main/java/im/vector/app/VectorApplication.kt
@@ -43,7 +43,6 @@ import dagger.hilt.android.HiltAndroidApp
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.extensions.configureAndStart
 import im.vector.app.core.extensions.startSyncing
-import im.vector.app.core.time.Clock
 import im.vector.app.features.analytics.VectorAnalytics
 import im.vector.app.features.call.webrtc.WebRtcCallManager
 import im.vector.app.features.configuration.VectorConfiguration
@@ -86,7 +85,6 @@ class VectorApplication :
     @Inject lateinit var emojiCompatWrapper: EmojiCompatWrapper
     @Inject lateinit var vectorUncaughtExceptionHandler: VectorUncaughtExceptionHandler
     @Inject lateinit var activeSessionHolder: ActiveSessionHolder
-    @Inject lateinit var clock: Clock
     @Inject lateinit var notificationDrawerManager: NotificationDrawerManager
     @Inject lateinit var vectorPreferences: VectorPreferences
     @Inject lateinit var versionProvider: VersionProvider
@@ -100,6 +98,7 @@ class VectorApplication :
     @Inject lateinit var vectorFileLogger: VectorFileLogger
     @Inject lateinit var vectorAnalytics: VectorAnalytics
     @Inject lateinit var matrix: Matrix
+    @Inject lateinit var fcmHelper: FcmHelper
 
     // font thread handler
     private var fontThreadHandler: Handler? = null
@@ -174,7 +173,7 @@ class VectorApplication :
         ProcessLifecycleOwner.get().lifecycle.addObserver(object : DefaultLifecycleObserver {
             override fun onResume(owner: LifecycleOwner) {
                 Timber.i("App entered foreground")
-                FcmHelper.onEnterForeground(appContext, activeSessionHolder)
+                fcmHelper.onEnterForeground(activeSessionHolder)
                 activeSessionHolder.getSafeActiveSession()?.also {
                     it.syncService().stopAnyBackgroundSync()
                 }
@@ -182,7 +181,7 @@ class VectorApplication :
 
             override fun onPause(owner: LifecycleOwner) {
                 Timber.i("App entered background")
-                FcmHelper.onEnterBackground(appContext, vectorPreferences, activeSessionHolder, clock)
+                fcmHelper.onEnterBackground(activeSessionHolder)
             }
         })
         ProcessLifecycleOwner.get().lifecycle.addObserver(appStateHandler)
diff --git a/vector/src/main/java/im/vector/app/core/pushers/UnifiedPushHelper.kt b/vector/src/main/java/im/vector/app/core/pushers/UnifiedPushHelper.kt
index 897797b0ab..4c56fd9ad3 100644
--- a/vector/src/main/java/im/vector/app/core/pushers/UnifiedPushHelper.kt
+++ b/vector/src/main/java/im/vector/app/core/pushers/UnifiedPushHelper.kt
@@ -45,6 +45,7 @@ class UnifiedPushHelper @Inject constructor(
         private val vectorPreferences: VectorPreferences,
         private val matrix: Matrix,
         private val vectorFeatures: VectorFeatures,
+        private val fcmHelper: FcmHelper,
 ) {
     private val up = UnifiedPush
 
@@ -132,7 +133,7 @@ class UnifiedPushHelper @Inject constructor(
             cancellable: Boolean,
     ) {
         val internalDistributorName = stringProvider.getString(
-                if (FcmHelper.isFirebaseAvailable()) {
+                if (fcmHelper.isFirebaseAvailable()) {
                     R.string.unifiedpush_distributor_fcm_fallback
                 } else {
                     R.string.unifiedpush_distributor_background_sync
@@ -244,11 +245,11 @@ class UnifiedPushHelper @Inject constructor(
     }
 
     fun isEmbeddedDistributor(): Boolean {
-        return up.getDistributor(context) == context.packageName && FcmHelper.isFirebaseAvailable()
+        return up.getDistributor(context) == context.packageName && fcmHelper.isFirebaseAvailable()
     }
 
     fun isBackgroundSync(): Boolean {
-        return up.getDistributor(context) == context.packageName && !FcmHelper.isFirebaseAvailable()
+        return up.getDistributor(context) == context.packageName && !fcmHelper.isFirebaseAvailable()
     }
 
     fun getPrivacyFriendlyUpEndpoint(): String? {
diff --git a/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt b/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
index 26bb72b26f..f2690fa18a 100644
--- a/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
+++ b/vector/src/main/java/im/vector/app/features/home/HomeActivity.kt
@@ -129,6 +129,7 @@ class HomeActivity :
     @Inject lateinit var initSyncStepFormatter: InitSyncStepFormatter
     @Inject lateinit var appStateHandler: AppStateHandler
     @Inject lateinit var unifiedPushHelper: UnifiedPushHelper
+    @Inject lateinit var fcmHelper: FcmHelper
 
     private val createSpaceResultLauncher = registerStartForActivityResult { activityResult ->
         if (activityResult.resultCode == Activity.RESULT_OK) {
@@ -191,7 +192,7 @@ class HomeActivity :
         supportFragmentManager.registerFragmentLifecycleCallbacks(fragmentLifecycleCallbacks, false)
         unifiedPushHelper.register(this) {
             if (unifiedPushHelper.isEmbeddedDistributor()) {
-                FcmHelper.ensureFcmTokenIsRetrieved(
+                fcmHelper.ensureFcmTokenIsRetrieved(
                         this,
                         pushManager,
                         vectorPreferences.areNotificationEnabledForDevice()
diff --git a/vector/src/main/java/im/vector/app/features/settings/troubleshoot/TestAvailableUnifiedPushDistributors.kt b/vector/src/main/java/im/vector/app/features/settings/troubleshoot/TestAvailableUnifiedPushDistributors.kt
index a66954b023..acc0142924 100644
--- a/vector/src/main/java/im/vector/app/features/settings/troubleshoot/TestAvailableUnifiedPushDistributors.kt
+++ b/vector/src/main/java/im/vector/app/features/settings/troubleshoot/TestAvailableUnifiedPushDistributors.kt
@@ -27,13 +27,14 @@ import javax.inject.Inject
 class TestAvailableUnifiedPushDistributors @Inject constructor(
         private val unifiedPushHelper: UnifiedPushHelper,
         private val stringProvider: StringProvider,
+        private val fcmHelper: FcmHelper,
 ) : TroubleshootTest(R.string.settings_troubleshoot_test_distributors_title) {
 
     override fun perform(activityResultLauncher: ActivityResultLauncher<Intent>) {
         val distributors = unifiedPushHelper.getExternalDistributors()
         description = if (distributors.isEmpty()) {
             stringProvider.getString(
-                    if (FcmHelper.isFirebaseAvailable()) {
+                    if (fcmHelper.isFirebaseAvailable()) {
                         R.string.settings_troubleshoot_test_distributors_gplay
                     } else {
                         R.string.settings_troubleshoot_test_distributors_fdroid