diff --git a/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheet.kt b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheet.kt
index dc8ed66fb8..3f21aa3168 100644
--- a/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheet.kt
+++ b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheet.kt
@@ -21,15 +21,13 @@ import android.os.Bundle
 import android.view.KeyEvent
 import androidx.fragment.app.Fragment
 import com.airbnb.mvrx.MvRx
-import com.airbnb.mvrx.Success
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.withState
 import im.vector.riotx.R
 import im.vector.riotx.core.di.ScreenComponent
 import im.vector.riotx.core.extensions.commitTransaction
-import im.vector.riotx.core.extensions.observeEvent
+import im.vector.riotx.core.extensions.exhaustive
 import im.vector.riotx.core.platform.VectorBaseBottomSheetDialogFragment
-import im.vector.riotx.features.crypto.verification.VerificationAction
 import im.vector.riotx.features.crypto.verification.VerificationBottomSheet
 import javax.inject.Inject
 import kotlin.reflect.KClass
@@ -48,20 +46,16 @@ class DeviceListBottomSheet : VectorBaseBottomSheetDialogFragment() {
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
-        viewModel.requestLiveData.observeEvent(this) { async ->
-            when (async) {
-                is Success -> {
-                    when (val action = async.invoke()) {
-                        is VerificationAction.StartSASVerification -> {
-                            VerificationBottomSheet.withArgs(
-                                    roomId = null,
-                                    otherUserId = action.otherUserId,
-                                    transactionId = action.pendingRequestTransactionId
-                            ).show(requireActivity().supportFragmentManager, "REQPOP")
-                        }
-                    }
+        viewModel.observeViewEvents {
+            when (it) {
+                is DeviceListBottomSheetViewEvents.Verify -> {
+                    VerificationBottomSheet.withArgs(
+                            roomId = null,
+                            otherUserId = it.userId,
+                            transactionId = it.txID
+                    ).show(requireActivity().supportFragmentManager, "REQPOP")
                 }
-            }
+            }.exhaustive
         }
     }
 
diff --git a/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewEvents.kt b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewEvents.kt
new file mode 100644
index 0000000000..6d7348577e
--- /dev/null
+++ b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewEvents.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2020 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.riotx.features.roommemberprofile.devices
+
+import im.vector.riotx.core.platform.VectorViewEvents
+
+/**
+ * Transient events for device list screen
+ */
+sealed class DeviceListBottomSheetViewEvents : VectorViewEvents {
+    // data class Loading(val message: CharSequence? = null) : RoomDirectoryViewEvents()
+    // data class Failure(val throwable: Throwable) : DeviceListBottomSheetViewEvents()
+
+    data class Verify(val userId: String, val txID: String) : DeviceListBottomSheetViewEvents()
+}
diff --git a/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewModel.kt b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewModel.kt
index 667c3b6cdc..6d37cbbd43 100644
--- a/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewModel.kt
+++ b/vector/src/main/java/im/vector/riotx/features/roommemberprofile/devices/DeviceListBottomSheetViewModel.kt
@@ -16,14 +16,11 @@
  */
 package im.vector.riotx.features.roommemberprofile.devices
 
-import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
 import com.airbnb.mvrx.Async
 import com.airbnb.mvrx.FragmentViewModelContext
 import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.MvRxState
 import com.airbnb.mvrx.MvRxViewModelFactory
-import com.airbnb.mvrx.Success
 import com.airbnb.mvrx.ViewModelContext
 import com.squareup.inject.assisted.Assisted
 import com.squareup.inject.assisted.AssistedInject
@@ -36,11 +33,7 @@ import im.vector.matrix.android.internal.crypto.model.CryptoDeviceInfo
 import im.vector.matrix.rx.rx
 import im.vector.riotx.core.di.HasScreenInjector
 import im.vector.riotx.core.platform.EmptyAction
-import im.vector.riotx.core.platform.EmptyViewEvents
 import im.vector.riotx.core.platform.VectorViewModel
-import im.vector.riotx.core.resources.StringProvider
-import im.vector.riotx.core.utils.LiveEvent
-import im.vector.riotx.features.crypto.verification.VerificationAction
 
 data class DeviceListViewState(
         val userItem: MatrixItem? = null,
@@ -52,14 +45,8 @@ data class DeviceListViewState(
 
 class DeviceListBottomSheetViewModel @AssistedInject constructor(@Assisted private val initialState: DeviceListViewState,
                                                                  @Assisted private val userId: String,
-                                                                 private val stringProvider: StringProvider,
                                                                  private val session: Session)
-    : VectorViewModel<DeviceListViewState, EmptyAction, EmptyViewEvents>(initialState) {
-
-    // Can be used for several actions, for a one shot result
-    private val _requestLiveData = MutableLiveData<LiveEvent<Async<VerificationAction>>>()
-    val requestLiveData: LiveData<LiveEvent<Async<VerificationAction>>>
-        get() = _requestLiveData
+    : VectorViewModel<DeviceListViewState, EmptyAction, DeviceListBottomSheetViewEvents>(initialState) {
 
     @AssistedInject.Factory
     interface Factory {
@@ -67,7 +54,6 @@ class DeviceListBottomSheetViewModel @AssistedInject constructor(@Assisted priva
     }
 
     init {
-
         session.rx().liveUserCryptoDevices(userId)
                 .execute {
                     copy(cryptoDevices = it).also {
@@ -93,15 +79,17 @@ class DeviceListBottomSheetViewModel @AssistedInject constructor(@Assisted priva
         }
     }
 
+    // TODO Use handle()
     fun selectDevice(device: CryptoDeviceInfo?) {
         setState {
             copy(selectedDevice = device)
         }
     }
 
+    // TODO Use handle()
     fun manuallyVerify(device: CryptoDeviceInfo) {
         session.getVerificationService().beginKeyVerification(VerificationMethod.SAS, userId, device.deviceId, null)?.let { txID ->
-            _requestLiveData.postValue(LiveEvent(Success(VerificationAction.StartSASVerification(userId, txID))))
+            _viewEvents.post(DeviceListBottomSheetViewEvents.Verify(userId, txID))
         }
     }