diff --git a/src/wechaty/user/contact.py b/src/wechaty/user/contact.py
index abd485c9..9635dd0f 100644
--- a/src/wechaty/user/contact.py
+++ b/src/wechaty/user/contact.py
@@ -62,7 +62,7 @@
     # pytype: disable=pyi-error
     from .url_link import UrlLink
     from .mini_program import MiniProgram
-    
+
 
 log = get_logger('Contact')
 
@@ -190,7 +190,7 @@ async def find(cls,
 
         Args:
             query: the query body to build filter
-            
+
         Examples:
             >>> # 1. find contacts based query string, will match one of: contact_id, weixin, name and alias
             >>> # what's more, contact_id and weixin will follow extract match, name and alias will follow fuzzy match
@@ -319,7 +319,7 @@ async def say(self, message: Union[str, Message, FileBox, Contact, UrlLink, Mini
 
         Args:
             message: the message object to be sended to contact
-        
+
         Examples:
             >>> contact = Contact.load('contact-id')
             >>> await contact.say('hello')
@@ -331,7 +331,7 @@ async def say(self, message: Union[str, Message, FileBox, Contact, UrlLink, Mini
             >>> await contact.say(MiniProgram('username', 'appid'))
 
         Returns:
-            Message: if the message is send successfully, return the message object, otherwise return None 
+            Message: if the message is send successfully, return the message object, otherwise return None
         """
         if not message:
             log.error('can"t say nothing')
@@ -360,7 +360,7 @@ async def say(self, message: Union[str, Message, FileBox, Contact, UrlLink, Mini
                 conversation_id=self.contact_id,
                 file=message
             )
-
+            return None
         elif isinstance(message, UrlLink):
             # use this way to resolve circulation dependency import
             msg_id = await self.puppet.message_send_url(
@@ -390,7 +390,7 @@ def name(self) -> str:
         Examples:
             >>> contact = Contact.load('contact-id')
             >>> name: str = contact.name
-        
+
         Returns:
             str: name of contact, if the payload is None, return empty string
         """
@@ -403,7 +403,7 @@ async def alias(self,
                     ) -> Union[None, str]:
         """
         Get or set alias of contact.
-        
+
         If new_alias is given, it will set alias to new_alias,
         otherwise return current alias
 
@@ -527,7 +527,7 @@ def star(self) -> Optional[bool]:
     def gender(self) -> ContactGender:
         """
         Return the gender of contact.
-        
+
         Returns:
             ContactGender: the object of contact gender
         """
@@ -571,7 +571,7 @@ async def avatar(self, file_box: Optional[FileBox] = None) -> FileBox:
         Args:
             file_box: If given, it will set it as new avatar,
                 else get the current avatar. Defaults to None.
-        
+
         Examples:
             >>> contact = Contact.load('contact-id')
             >>> avatar = contact.avatar()
@@ -627,7 +627,7 @@ def weixin(self) -> Optional[str]:
         Examples:
             >>> contact = Contact.load('contact-id')
             >>> weixin = contact.weixin()
-            
+
         Returns:
             identifier: the weixin union identifier of contact
         """
diff --git a/src/wechaty/user/room.py b/src/wechaty/user/room.py
index 85ea075a..31730bb8 100644
--- a/src/wechaty/user/room.py
+++ b/src/wechaty/user/room.py
@@ -194,7 +194,7 @@ def filter_func(room: Room) -> bool:
 
     @classmethod
     async def find_all(cls,
-                       query: Optional[Union[str, RoomQueryFilter, Callable[[Contact], bool]]] = None) -> List[Room]:
+                       query: Optional[Union[str, RoomQueryFilter, Callable[[Contact], bool]]] = None,force_sync:bool=False) -> List[Room]:
         """
         find all rooms based on query, which can be string, RoomQueryFilter, or callable<filter> function
 
@@ -228,9 +228,9 @@ async def find_all(cls,
         # 1. load rooms with concurrent tasks
         room_ids = await cls.get_puppet().room_search()
         rooms: List[Room] = [cls.load(room_id) for room_id in room_ids]
-        tasks: List[Task] = [asyncio.create_task(room.ready()) for room in rooms]
+        tasks: List[Task] = [asyncio.create_task(room.ready(force_sync)) for room in rooms]
         await gather_with_concurrency(PARALLEL_TASK_NUM, tasks)
-        
+
         # 2. filter the rooms
         if not query:
             return rooms
@@ -315,7 +315,7 @@ async def ready(self, force_sync: bool = False, load_members: bool = False) -> N
         Returns:
             None
         """
-        if self.is_ready():
+        if not force_sync and self.is_ready():
             return
 
         if force_sync:
diff --git a/src/wechaty/wechaty.py b/src/wechaty/wechaty.py
index 1591943d..0972a64f 100644
--- a/src/wechaty/wechaty.py
+++ b/src/wechaty/wechaty.py
@@ -530,7 +530,7 @@ async def heartbeat_listener(payload: EventHeartbeatPayload) -> None:
                     self.emit('heartbeat', payload.data)
                     await self.on_heartbeat(payload)
 
-                puppet.on('heart-beat', heartbeat_listener)
+                puppet.on('heartbeat', heartbeat_listener)
 
             elif event_name == 'friendship':
                 async def friendship_listener(payload: EventFriendshipPayload) -> None: