diff --git a/vector/src/debug/java/im/vector/app/features/debug/DebugPermissionActivity.kt b/vector/src/debug/java/im/vector/app/features/debug/DebugPermissionActivity.kt
index 3eca2b49be..e03565adfd 100644
--- a/vector/src/debug/java/im/vector/app/features/debug/DebugPermissionActivity.kt
+++ b/vector/src/debug/java/im/vector/app/features/debug/DebugPermissionActivity.kt
@@ -26,6 +26,8 @@ import im.vector.app.R
 import im.vector.app.core.platform.VectorBaseActivity
 import im.vector.app.core.utils.PERMISSIONS_ALL
 import im.vector.app.core.utils.checkPermissions
+import im.vector.app.core.utils.onPermissionDeniedDialog
+import im.vector.app.core.utils.onPermissionDeniedSnackbar
 import im.vector.app.core.utils.registerForPermissionsResult
 import im.vector.app.databinding.ActivityDebugPermissionBinding
 import timber.log.Timber
@@ -34,6 +36,8 @@ class DebugPermissionActivity : VectorBaseActivity<ActivityDebugPermissionBindin
 
     override fun getBinding() = ActivityDebugPermissionBinding.inflate(layoutInflater)
 
+    override fun getCoordinatorLayout() = views.coordinatorLayout
+
     private var lastPermissions = emptyList<String>()
 
     override fun initUiAndData() {
@@ -67,12 +71,19 @@ class DebugPermissionActivity : VectorBaseActivity<ActivityDebugPermissionBindin
         }
     }
 
+    private var dialogOrSnackbar = false
+
     private val launcher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             Toast.makeText(this, "All granted", Toast.LENGTH_SHORT).show()
         } else {
             if (deniedPermanently) {
-                Toast.makeText(this, "Denied forever", Toast.LENGTH_SHORT).show()
+                dialogOrSnackbar = !dialogOrSnackbar
+                if (dialogOrSnackbar) {
+                    onPermissionDeniedDialog(R.string.denied_permission_camera)
+                } else {
+                    onPermissionDeniedSnackbar(R.string.denied_permission_camera)
+                }
             } else {
                 Toast.makeText(this, "Denied", Toast.LENGTH_SHORT).show()
             }
diff --git a/vector/src/main/java/im/vector/app/core/dialogs/GalleryOrCameraDialogHelper.kt b/vector/src/main/java/im/vector/app/core/dialogs/GalleryOrCameraDialogHelper.kt
index 3b25fd3f89..23c2e13f6f 100644
--- a/vector/src/main/java/im/vector/app/core/dialogs/GalleryOrCameraDialogHelper.kt
+++ b/vector/src/main/java/im/vector/app/core/dialogs/GalleryOrCameraDialogHelper.kt
@@ -29,6 +29,7 @@ import im.vector.app.core.extensions.registerStartForActivityResult
 import im.vector.app.core.resources.ColorProvider
 import im.vector.app.core.utils.PERMISSIONS_FOR_TAKING_PHOTO
 import im.vector.app.core.utils.checkPermissions
+import im.vector.app.core.utils.onPermissionDeniedDialog
 import im.vector.app.core.utils.registerForPermissionsResult
 import im.vector.app.features.media.createUCropWithDefaultSettings
 import im.vector.lib.multipicker.MultiPicker
@@ -55,9 +56,11 @@ class GalleryOrCameraDialogHelper(
 
     private val listener = fragment as? Listener ?: error("Fragment must implement GalleryOrCameraDialogHelper.Listener")
 
-    private val takePhotoPermissionActivityResultLauncher = fragment.registerForPermissionsResult { allGranted ->
+    private val takePhotoPermissionActivityResultLauncher = fragment.registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             doOpenCamera()
+        } else if (deniedPermanently) {
+            activity.onPermissionDeniedDialog(R.string.denied_permission_camera)
         }
     }
 
@@ -116,7 +119,7 @@ class GalleryOrCameraDialogHelper(
 
     private fun onAvatarTypeSelected(type: Type) {
         when (type) {
-            Type.Camera ->
+            Type.Camera  ->
                 if (checkPermissions(PERMISSIONS_FOR_TAKING_PHOTO, activity, takePhotoPermissionActivityResultLauncher)) {
                     doOpenCamera()
                 }
diff --git a/vector/src/main/java/im/vector/app/core/utils/PermissionsTools.kt b/vector/src/main/java/im/vector/app/core/utils/PermissionsTools.kt
index 3901e63eb0..edeedb9493 100644
--- a/vector/src/main/java/im/vector/app/core/utils/PermissionsTools.kt
+++ b/vector/src/main/java/im/vector/app/core/utils/PermissionsTools.kt
@@ -26,6 +26,7 @@ import androidx.annotation.StringRes
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import im.vector.app.R
 import im.vector.app.core.platform.VectorBaseActivity
@@ -78,9 +79,22 @@ fun ComponentActivity.registerForPermissionsResult(lambda: (allGranted: Boolean,
     }
 }
 
-fun Fragment.registerForPermissionsResult(allGranted: (Boolean) -> Unit): ActivityResultLauncher<Array<String>> {
+fun Fragment.registerForPermissionsResult(lambda: (allGranted: Boolean, deniedPermanently: Boolean) -> Unit): ActivityResultLauncher<Array<String>> {
     return registerForActivityResult(ActivityResultContracts.RequestMultiplePermissions()) { result ->
-        allGranted.invoke(result.keys.all { result[it] == true })
+        if (result.keys.all { result[it] == true }) {
+            lambda(true, /* not used */ false)
+        } else {
+            if (permissionDialogDisplayed) {
+                // A permission dialog has been displayed, so even if the user has checked the do not ask again button, we do
+                // not tell the user to open the app settings
+                lambda(false, false)
+            } else {
+                // No dialog has been displayed, so tell the user to go to the system setting
+                lambda(false, true)
+            }
+        }
+        // Reset
+        permissionDialogDisplayed = false
     }
 }
 
@@ -163,3 +177,14 @@ fun VectorBaseActivity<*>.onPermissionDeniedSnackbar(@StringRes rationaleMessage
         openAppSettingsPage(this)
     }
 }
+
+fun FragmentActivity.onPermissionDeniedDialog(@StringRes rationaleMessage: Int) {
+    MaterialAlertDialogBuilder(this)
+            .setTitle(R.string.missing_permissions_title)
+            .setMessage(rationaleMessage)
+            .setPositiveButton(R.string.open_settings) { _, _ ->
+                openAppSettingsPage(this)
+            }
+            .setNegativeButton(R.string.cancel, null)
+            .show()
+}
diff --git a/vector/src/main/java/im/vector/app/features/createdirect/CreateDirectRoomByQrCodeFragment.kt b/vector/src/main/java/im/vector/app/features/createdirect/CreateDirectRoomByQrCodeFragment.kt
index 92a03c5483..8da0147a43 100644
--- a/vector/src/main/java/im/vector/app/features/createdirect/CreateDirectRoomByQrCodeFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/createdirect/CreateDirectRoomByQrCodeFragment.kt
@@ -27,6 +27,7 @@ import im.vector.app.core.extensions.hideKeyboard
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.core.utils.PERMISSIONS_FOR_TAKING_PHOTO
 import im.vector.app.core.utils.checkPermissions
+import im.vector.app.core.utils.onPermissionDeniedDialog
 import im.vector.app.core.utils.registerForPermissionsResult
 import im.vector.app.databinding.FragmentQrCodeScannerBinding
 import im.vector.app.features.userdirectory.PendingSelection
@@ -44,9 +45,11 @@ class CreateDirectRoomByQrCodeFragment @Inject constructor() : VectorBaseFragmen
         return FragmentQrCodeScannerBinding.inflate(inflater, container, false)
     }
 
-    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             startCamera()
+        } else if (deniedPermanently) {
+            activity?.onPermissionDeniedDialog(R.string.denied_permission_camera)
         }
     }
 
diff --git a/vector/src/main/java/im/vector/app/features/crypto/verification/choose/VerificationChooseMethodFragment.kt b/vector/src/main/java/im/vector/app/features/crypto/verification/choose/VerificationChooseMethodFragment.kt
index 5d114b26bf..d3f24816a5 100644
--- a/vector/src/main/java/im/vector/app/features/crypto/verification/choose/VerificationChooseMethodFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/crypto/verification/choose/VerificationChooseMethodFragment.kt
@@ -23,12 +23,14 @@ import android.view.ViewGroup
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.parentFragmentViewModel
 import com.airbnb.mvrx.withState
+import im.vector.app.R
 import im.vector.app.core.extensions.cleanup
 import im.vector.app.core.extensions.configureWith
 import im.vector.app.core.extensions.registerStartForActivityResult
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.core.utils.PERMISSIONS_FOR_TAKING_PHOTO
 import im.vector.app.core.utils.checkPermissions
+import im.vector.app.core.utils.onPermissionDeniedDialog
 import im.vector.app.core.utils.registerForPermissionsResult
 import im.vector.app.databinding.BottomSheetVerificationChildFragmentBinding
 import im.vector.app.features.crypto.verification.VerificationAction
@@ -79,9 +81,11 @@ class VerificationChooseMethodFragment @Inject constructor(
                 state.pendingRequest.invoke()?.transactionId ?: ""))
     }
 
-    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             doOpenQRCodeScanner()
+        } else if (deniedPermanently) {
+            activity?.onPermissionDeniedDialog(R.string.denied_permission_camera)
         }
     }
 
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailFragment.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailFragment.kt
index f7fd4026b0..b88a1a6e3a 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/RoomDetailFragment.kt
@@ -101,6 +101,7 @@ import im.vector.app.core.utils.copyToClipboard
 import im.vector.app.core.utils.createJSonViewerStyleProvider
 import im.vector.app.core.utils.createUIHandler
 import im.vector.app.core.utils.isValidUrl
+import im.vector.app.core.utils.onPermissionDeniedDialog
 import im.vector.app.core.utils.openUrlInExternalBrowser
 import im.vector.app.core.utils.registerForPermissionsResult
 import im.vector.app.core.utils.saveMedia
@@ -1062,14 +1063,16 @@ class RoomDetailFragment @Inject constructor(
         }
     }
 
-    private val startCallActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val startCallActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             (roomDetailViewModel.pendingAction as? RoomDetailAction.StartCall)?.let {
                 roomDetailViewModel.pendingAction = null
                 roomDetailViewModel.handle(it)
             }
         } else {
-            context?.toast(R.string.permissions_action_not_performed_missing_permissions)
+            if (deniedPermanently) {
+                activity?.onPermissionDeniedDialog(R.string.denied_permission_generic)
+            }
             cleanUpAfterPermissionNotGranted()
         }
     }
@@ -1738,13 +1741,16 @@ class RoomDetailFragment @Inject constructor(
         }
     }
 
-    private val saveActionActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val saveActionActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             sharedActionViewModel.pendingAction?.let {
                 handleActions(it)
                 sharedActionViewModel.pendingAction = null
             }
         } else {
+            if (deniedPermanently) {
+                activity?.onPermissionDeniedDialog(R.string.denied_permission_generic)
+            }
             cleanUpAfterPermissionNotGranted()
         }
     }
@@ -1977,7 +1983,7 @@ class RoomDetailFragment @Inject constructor(
 
 // AttachmentTypeSelectorView.Callback
 
-    private val typeSelectedActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val typeSelectedActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             val pendingType = attachmentsHelper.pendingType
             if (pendingType != null) {
@@ -1985,6 +1991,9 @@ class RoomDetailFragment @Inject constructor(
                 launchAttachmentProcess(pendingType)
             }
         } else {
+            if (deniedPermanently) {
+                activity?.onPermissionDeniedDialog(R.string.denied_permission_generic)
+            }
             cleanUpAfterPermissionNotGranted()
         }
     }
diff --git a/vector/src/main/java/im/vector/app/features/usercode/ScanUserCodeFragment.kt b/vector/src/main/java/im/vector/app/features/usercode/ScanUserCodeFragment.kt
index 2d03c7c4ca..ed7043bb41 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/ScanUserCodeFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/ScanUserCodeFragment.kt
@@ -65,7 +65,7 @@ class ScanUserCodeFragment @Inject constructor()
         }
     }
 
-    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted, _ ->
         if (allGranted) {
             startCamera()
         } else {
diff --git a/vector/src/main/java/im/vector/app/features/usercode/ShowUserCodeFragment.kt b/vector/src/main/java/im/vector/app/features/usercode/ShowUserCodeFragment.kt
index 042681d780..c451118813 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/ShowUserCodeFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/ShowUserCodeFragment.kt
@@ -43,11 +43,11 @@ class ShowUserCodeFragment @Inject constructor(
 
     val sharedViewModel: UserCodeSharedViewModel by activityViewModel()
 
-    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted ->
+    private val openCameraActivityResultLauncher = registerForPermissionsResult { allGranted, deniedPermanently ->
         if (allGranted) {
             doOpenQRCodeScanner()
         } else {
-            sharedViewModel.handle(UserCodeActions.CameraPermissionNotGranted)
+            sharedViewModel.handle(UserCodeActions.CameraPermissionNotGranted(deniedPermanently))
         }
     }
 
diff --git a/vector/src/main/java/im/vector/app/features/usercode/UserCodeActions.kt b/vector/src/main/java/im/vector/app/features/usercode/UserCodeActions.kt
index 3411fe3d7f..25a7bab7da 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/UserCodeActions.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/UserCodeActions.kt
@@ -24,6 +24,6 @@ sealed class UserCodeActions : VectorViewModelAction {
     data class SwitchMode(val mode: UserCodeState.Mode) : UserCodeActions()
     data class DecodedQRCode(val code: String) : UserCodeActions()
     data class StartChattingWithUser(val matrixItem: MatrixItem) : UserCodeActions()
-    object CameraPermissionNotGranted : UserCodeActions()
+    data class CameraPermissionNotGranted(val deniedPermanently: Boolean) : UserCodeActions()
     object ShareByText : UserCodeActions()
 }
diff --git a/vector/src/main/java/im/vector/app/features/usercode/UserCodeActivity.kt b/vector/src/main/java/im/vector/app/features/usercode/UserCodeActivity.kt
index 6cdde6c880..0771a5d238 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/UserCodeActivity.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/UserCodeActivity.kt
@@ -81,13 +81,17 @@ class UserCodeActivity : VectorBaseActivity<ActivitySimpleBinding>(),
 
         sharedViewModel.observeViewEvents {
             when (it) {
-                UserCodeShareViewEvents.Dismiss                    -> ActivityCompat.finishAfterTransition(this)
-                UserCodeShareViewEvents.ShowWaitingScreen          -> views.simpleActivityWaitingView.isVisible = true
-                UserCodeShareViewEvents.HideWaitingScreen          -> views.simpleActivityWaitingView.isVisible = false
-                is UserCodeShareViewEvents.ToastMessage            -> Toast.makeText(this, it.message, Toast.LENGTH_LONG).show()
-                is UserCodeShareViewEvents.NavigateToRoom          -> navigator.openRoom(this, it.roomId)
-                UserCodeShareViewEvents.CameraPermissionNotGranted -> onPermissionDeniedSnackbar(R.string.permissions_denied_qr_code)
-                else                                               -> {
+                UserCodeShareViewEvents.Dismiss                       -> ActivityCompat.finishAfterTransition(this)
+                UserCodeShareViewEvents.ShowWaitingScreen             -> views.simpleActivityWaitingView.isVisible = true
+                UserCodeShareViewEvents.HideWaitingScreen             -> views.simpleActivityWaitingView.isVisible = false
+                is UserCodeShareViewEvents.ToastMessage               -> Toast.makeText(this, it.message, Toast.LENGTH_LONG).show()
+                is UserCodeShareViewEvents.NavigateToRoom             -> navigator.openRoom(this, it.roomId)
+                is UserCodeShareViewEvents.CameraPermissionNotGranted -> {
+                    if (it.deniedPermanently) {
+                        onPermissionDeniedSnackbar(R.string.permissions_denied_qr_code)
+                    }
+                }
+                else                                                  -> {
                 }
             }
         }
diff --git a/vector/src/main/java/im/vector/app/features/usercode/UserCodeShareViewEvents.kt b/vector/src/main/java/im/vector/app/features/usercode/UserCodeShareViewEvents.kt
index 67a1ab8a6c..eaa3b46af1 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/UserCodeShareViewEvents.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/UserCodeShareViewEvents.kt
@@ -24,6 +24,6 @@ sealed class UserCodeShareViewEvents : VectorViewEvents {
     object HideWaitingScreen : UserCodeShareViewEvents()
     data class ToastMessage(val message: String) : UserCodeShareViewEvents()
     data class NavigateToRoom(val roomId: String) : UserCodeShareViewEvents()
-    object CameraPermissionNotGranted : UserCodeShareViewEvents()
+    data class CameraPermissionNotGranted(val deniedPermanently: Boolean) : UserCodeShareViewEvents()
     data class SharePlainText(val text: String, val title: String, val richPlainText: String) : UserCodeShareViewEvents()
 }
diff --git a/vector/src/main/java/im/vector/app/features/usercode/UserCodeSharedViewModel.kt b/vector/src/main/java/im/vector/app/features/usercode/UserCodeSharedViewModel.kt
index 9637b72581..071044fc8a 100644
--- a/vector/src/main/java/im/vector/app/features/usercode/UserCodeSharedViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/usercode/UserCodeSharedViewModel.kt
@@ -76,7 +76,7 @@ class UserCodeSharedViewModel @AssistedInject constructor(
             is UserCodeActions.SwitchMode -> setState { copy(mode = action.mode) }
             is UserCodeActions.DecodedQRCode -> handleQrCodeDecoded(action)
             is UserCodeActions.StartChattingWithUser -> handleStartChatting(action)
-            UserCodeActions.CameraPermissionNotGranted -> _viewEvents.post(UserCodeShareViewEvents.CameraPermissionNotGranted)
+            is UserCodeActions.CameraPermissionNotGranted -> _viewEvents.post(UserCodeShareViewEvents.CameraPermissionNotGranted(action.deniedPermanently))
             UserCodeActions.ShareByText -> handleShareByText()
         }
     }
diff --git a/vector/src/main/res/values/strings.xml b/vector/src/main/res/values/strings.xml
index 0159c98c20..6c18eb2db5 100644
--- a/vector/src/main/res/values/strings.xml
+++ b/vector/src/main/res/values/strings.xml
@@ -386,12 +386,16 @@
     <string name="reset">Reset</string>
     <string name="start_chatting">Start Chatting</string>
 
+    <!-- Permissions denied forever -->
+    <string name="denied_permission_generic">Some permissions are missing to perform this action, please grant the permissions from the system settings.</string>
+    <string name="denied_permission_camera">To perform this action, please grant the Camera permission from the system settings.</string>
 
     <!-- First param will be replace by the value of ongoing_conference_call_voice, and second one by the value of ongoing_conference_call_video -->
     <string name="ongoing_conference_call">Ongoing conference call.\nJoin as %1$s or %2$s</string>
     <string name="ongoing_conference_call_voice">Voice</string>
     <string name="ongoing_conference_call_video">Video</string>
     <string name="cannot_start_call">Cannot start the call, please try later</string>
+    <string name="missing_permissions_title">Missing permissions</string>
     <string name="missing_permissions_warning">"Due to missing permissions, some features may be missing…</string>
     <string name="missing_permissions_error">"Due to missing permissions, this action is not possible.</string>
     <string name="missing_permissions_to_start_conf_call">You need permission to invite to start a conference in this room</string>