diff --git a/custom_components/xiaomi_home/miot/miot_client.py b/custom_components/xiaomi_home/miot/miot_client.py
index cdfe110..927f639 100644
--- a/custom_components/xiaomi_home/miot/miot_client.py
+++ b/custom_components/xiaomi_home/miot/miot_client.py
@@ -983,13 +983,17 @@ class MIoTClient:
                 and self._device_list_lan[did].get('push_available', False)
             ):
                 from_new = 'lan'
-
         if (
             from_new is None
             and did in self._device_list_cloud
-            and self._device_list_cloud[did].get('online', False)
         ):
-            from_new = 'cloud'
+            # MIoT cloud service may not publish the online state updating
+            # message for the BLE device.
+            if did.startswith('blt.'):
+                from_new = 'cloud'
+            elif self._device_list_cloud[did].get('online', False):
+                from_new = 'cloud'
+
         if from_new == from_old:
             # No need to update
             return