diff --git a/native/avatars/avatar-hooks.js b/native/avatars/avatar-hooks.js
--- a/native/avatars/avatar-hooks.js
+++ b/native/avatars/avatar-hooks.js
@@ -44,8 +44,7 @@
 import blobServiceUploadHandler from '../utils/blob-service-upload.js';
 import { useStaffCanSee } from '../utils/staff-utils.js';
 
-// TODO: flip the switch
-const useBlobServiceUploads = false;
+const useBlobServiceUploads = true;
 
 function displayAvatarUpdateFailureAlert(): void {
   Alert.alert(
diff --git a/native/input/input-state-container.react.js b/native/input/input-state-container.react.js
--- a/native/input/input-state-container.react.js
+++ b/native/input/input-state-container.react.js
@@ -191,9 +191,8 @@
     }>,
   > = new Map();
   pendingThreadUpdateHandlers: Map<string, (ThreadInfo) => mixed> = new Map();
-  // TODO: flip the switch
-  // Note that this enables Blob service for encrypted media only
-  useBlobServiceUploads = false;
+
+  useBlobServiceUploads = true;
 
   // When the user sends a multimedia message that triggers the creation of a
   // sidebar, the sidebar gets created right away, but the message needs to wait
diff --git a/web/avatars/avatar-hooks.react.js b/web/avatars/avatar-hooks.react.js
--- a/web/avatars/avatar-hooks.react.js
+++ b/web/avatars/avatar-hooks.react.js
@@ -14,8 +14,7 @@
 import { generateThumbHash } from '../media/image-utils.js';
 import { validateFile } from '../media/media-utils.js';
 
-// TODO: flip the switch
-const useBlobServiceUploads = false;
+const useBlobServiceUploads = true;
 
 type AvatarMediaUploadOptions = {
   +uploadMetadataToKeyserver?: boolean,
diff --git a/web/input/input-state-container.react.js b/web/input/input-state-container.react.js
--- a/web/input/input-state-container.react.js
+++ b/web/input/input-state-container.react.js
@@ -212,9 +212,8 @@
       +threadType: ThreadType,
     }>,
   >();
-  // TODO: flip the switch
-  // Note that this enables Blob service for encrypted media only
-  useBlobServiceUploads = false;
+
+  useBlobServiceUploads = true;
 
   // When the user sends a multimedia message that triggers the creation of a
   // sidebar, the sidebar gets created right away, but the message needs to wait