diff --git a/custom_components/midea_auto_codec/__init__.py b/custom_components/midea_auto_codec/__init__.py
index c9e1680..b300e2b 100644
--- a/custom_components/midea_auto_codec/__init__.py
+++ b/custom_components/midea_auto_codec/__init__.py
@@ -4,6 +4,7 @@ import voluptuous as vol
 from importlib import import_module
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.util.json import load_json
+
 try:
     from homeassistant.helpers.json import save_json
 except ImportError:
@@ -11,7 +12,7 @@ except ImportError:
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.core import (
-    HomeAssistant, 
+    HomeAssistant,
     ServiceCall
 )
 from homeassistant.const import (
@@ -42,7 +43,7 @@ from .const import (
     CONF_SN8,
     CONF_SN,
     CONF_MODEL_NUMBER,
-    CONF_LUA_FILE, CONF_SERVERS
+    CONF_SERVERS
 )
 # 账号型：登录云端、获取设备列表，并为每台设备建立协调器（无本地控制）
 from .const import CONF_PASSWORD as CONF_PASSWORD_KEY, CONF_SERVER as CONF_SERVER_KEY
@@ -57,6 +58,7 @@ PLATFORMS: list[Platform] = [
     Platform.FAN
 ]
 
+
 def get_sn8_used(hass: HomeAssistant, sn8):
     entries = hass.config_entries.async_entries(DOMAIN)
     count = 0
@@ -74,13 +76,26 @@ def remove_device_config(hass: HomeAssistant, sn8):
         pass
 
 
-def load_device_config(hass: HomeAssistant, device_type, sn8):
-    os.makedirs(hass.config.path(CONFIG_PATH), exist_ok=True)
+async def load_device_config(hass: HomeAssistant, device_type, sn8):
+    def _ensure_dir_and_load(path_dir: str, path_file: str):
+        os.makedirs(path_dir, exist_ok=True)
+        return load_json(path_file, default={})
+
+    config_dir = hass.config.path(CONFIG_PATH)
     config_file = hass.config.path(f"{CONFIG_PATH}/{sn8}.json")
-    json_data = load_json(config_file, default={})
-    if len(json_data) > 0:
-        json_data = json_data.get(sn8)
-    else:
+    raw = await hass.async_add_executor_job(_ensure_dir_and_load, config_dir, config_file)
+    json_data = {}
+    if isinstance(raw, dict) and len(raw) > 0:
+        # 兼容两种文件结构：
+        # 1) { "<sn8>": { ...mapping... } }
+        # 2) { ...mapping... }（直接就是映射体）
+        if sn8 in raw:
+            json_data = raw.get(sn8) or {}
+        else:
+            # 如果像映射体（包含 entities/centralized 等关键字段），直接使用
+            if any(k in raw for k in ["entities", "centralized", "queries", "manufacturer"]):
+                json_data = raw
+    if not json_data:
         device_path = f".device_mapping.{'T0x%02X' % device_type}"
         try:
             mapping_module = import_module(device_path, __package__)
@@ -90,57 +105,12 @@ def load_device_config(hass: HomeAssistant, device_type, sn8):
                 json_data = mapping_module.DEVICE_MAPPING["default"]
             if len(json_data) > 0:
                 save_data = {sn8: json_data}
-                save_json(config_file, save_data)
+                # offload save_json as well
+                await hass.async_add_executor_job(save_json, config_file, save_data)
         except ModuleNotFoundError:
             MideaLogger.warning(f"Can't load mapping file for type {'T0x%02X' % device_type}")
     return json_data
 
-
-def register_services(hass: HomeAssistant):
-
-    async def async_set_attributes(service: ServiceCall):
-        device_id = service.data.get("device_id")
-        attributes = service.data.get("attributes")
-        MideaLogger.debug(f"Service called: set_attributes, device_id: {device_id}, attributes: {attributes}")
-        try:
-            coordinator: MideaDataUpdateCoordinator = hass.data[DOMAIN][DEVICES][device_id].get("coordinator")
-        except KeyError:
-            MideaLogger.error(f"Failed to call service set_attributes: the device {device_id} isn't exist.")
-            return
-        if coordinator:
-            await coordinator.async_set_attributes(attributes)
-
-    async def async_send_command(service: ServiceCall):
-        device_id = service.data.get("device_id")
-        cmd_type = service.data.get("cmd_type")
-        cmd_body = service.data.get("cmd_body")
-        try:
-            coordinator: MideaDataUpdateCoordinator = hass.data[DOMAIN][DEVICES][device_id].get("coordinator")
-        except KeyError:
-            MideaLogger.error(f"Failed to call service send_command: the device {device_id} isn't exist.")
-            return
-        if coordinator:
-            await coordinator.async_send_command(cmd_type, cmd_body)
-
-    hass.services.async_register(
-        DOMAIN, 
-        "set_attributes", 
-        async_set_attributes,
-        schema=vol.Schema({ 
-            vol.Required("device_id"): vol.Coerce(int),
-            vol.Required("attributes"): vol.Any(dict)
-        })
-    )
-    hass.services.async_register(
-        DOMAIN, "send_command", async_send_command,
-        schema=vol.Schema({
-            vol.Required("device_id"): vol.Coerce(int),
-            vol.Required("cmd_type"): vol.In([2, 3]),
-            vol.Required("cmd_body"): str
-        })
-    )
-
-
 async def update_listener(hass: HomeAssistant, config_entry: ConfigEntry):
     device_id = config_entry.data.get(CONF_DEVICE_ID)
     if device_id is not None:
@@ -172,8 +142,6 @@ async def async_setup(hass: HomeAssistant, config: ConfigType):
         bit_lua = base64.b64decode(BIT_LUA.encode("utf-8")).decode("utf-8")
         with open(bit, "wt") as fp:
             fp.write(bit_lua)
-
-    register_services(hass)
     return True
 
 
@@ -234,11 +202,10 @@ async def async_setup_entry(hass: HomeAssistant, config_entry: ConfigEntry):
                     subtype=info.get(CONF_MODEL_NUMBER),
                     sn=info.get(CONF_SN) or info.get("sn"),
                     sn8=info.get(CONF_SN8) or info.get("sn8"),
-                    lua_file=None,
                 )
                 # 加载并应用设备映射（queries/centralized/calculate），并预置 attributes 键
                 try:
-                    mapping = load_device_config(
+                    mapping = await load_device_config(
                         hass,
                         info.get(CONF_TYPE) or info.get("type"),
                         info.get(CONF_SN8) or info.get("sn8"),
@@ -352,11 +319,9 @@ async def async_unload_entry(hass: HomeAssistant, config_entry: ConfigEntry):
         device: MiedaDevice = hass.data[DOMAIN][DEVICES][device_id][CONF_DEVICE]
         if device is not None:
             if get_sn8_used(hass, device.sn8) == 1:
-                lua_file = config_entry.data.get("lua_file")
-                os.remove(lua_file)
                 remove_device_config(hass, device.sn8)
             # device.close()
         hass.data[DOMAIN][DEVICES].pop(device_id)
-    for platform in ALL_PLATFORM:
+    for platform in PLATFORMS:
         await hass.config_entries.async_forward_entry_unload(config_entry, platform)
     return True
diff --git a/custom_components/midea_auto_codec/binary_sensor.py b/custom_components/midea_auto_codec/binary_sensor.py
index 3fba257..c5fcadc 100644
--- a/custom_components/midea_auto_codec/binary_sensor.py
+++ b/custom_components/midea_auto_codec/binary_sensor.py
@@ -29,7 +29,7 @@ async def async_setup_entry(
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.BINARY_SENSOR, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")
diff --git a/custom_components/midea_auto_codec/climate.py b/custom_components/midea_auto_codec/climate.py
index 88f4bf8..8d4fba8 100644
--- a/custom_components/midea_auto_codec/climate.py
+++ b/custom_components/midea_auto_codec/climate.py
@@ -37,7 +37,7 @@ async def async_setup_entry(
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.CLIMATE, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")
diff --git a/custom_components/midea_auto_codec/core/cloud.py b/custom_components/midea_auto_codec/core/cloud.py
index 0c5c48f..2185900 100644
--- a/custom_components/midea_auto_codec/core/cloud.py
+++ b/custom_components/midea_auto_codec/core/cloud.py
@@ -96,7 +96,7 @@ class MideaCloud:
                     break
             except Exception as e:
                 pass
-        print(response)
+
         if int(response["code"]) == 0 and "data" in response:
             return response["data"]
 
diff --git a/custom_components/midea_auto_codec/core/device.py b/custom_components/midea_auto_codec/core/device.py
index 1949962..a829f01 100644
--- a/custom_components/midea_auto_codec/core/device.py
+++ b/custom_components/midea_auto_codec/core/device.py
@@ -1,10 +1,8 @@
 import threading
 import socket
-import time
 from enum import IntEnum
 from .security import LocalSecurity, MSGTYPE_HANDSHAKE_REQUEST, MSGTYPE_ENCRYPTED_REQUEST
 from .packet_builder import PacketBuilder
-from .lua_runtime import MideaCodec
 from .message import MessageQuestCustom
 from .logger import MideaLogger
 
@@ -41,8 +39,7 @@ class MiedaDevice(threading.Thread):
                  subtype: int | None,
                  connected: bool,
                  sn: str | None,
-                 sn8: str | None,
-                 lua_file: str | None):
+                 sn8: str | None):
         threading.Thread.__init__(self)
         self._socket = None
         self._ip_address = ip_address
@@ -74,7 +71,6 @@ class MiedaDevice(threading.Thread):
         self._centralized = []
         self._calculate_get = []
         self._calculate_set = []
-        self._lua_runtime = MideaCodec(lua_file, sn=sn, subtype=subtype) if lua_file is not None else None
 
     @property
     def device_name(self):
@@ -136,8 +132,6 @@ class MiedaDevice(threading.Thread):
             for attr in self._centralized:
                 new_status[attr] = self._attributes.get(attr)
             new_status[attribute] = value
-            if set_cmd := self._lua_runtime.build_control(new_status):
-                self._build_send(set_cmd)
 
     def set_attributes(self, attributes):
         new_status = {}
@@ -148,9 +142,6 @@ class MiedaDevice(threading.Thread):
             if attribute in self._attributes.keys():
                 has_new = True
                 new_status[attribute] = value
-        if has_new:
-            if set_cmd := self._lua_runtime.build_control(new_status):
-                self._build_send(set_cmd)
 
     def set_ip_address(self, ip_address):
         MideaLogger.debug(f"Update IP address to {ip_address}")
@@ -219,72 +210,6 @@ class MiedaDevice(threading.Thread):
         msg = PacketBuilder(self._device_id, bytes_cmd).finalize()
         self._send_message(msg)
 
-    def _refresh_status(self):
-        for query in self._queries:
-            if query_cmd := self._lua_runtime.build_query(query):
-                self._build_send(query_cmd)
-
-    def _parse_message(self, msg):
-        if self._protocol == 3:
-            messages, self._buffer = self._security.decode_8370(self._buffer + msg)
-        else:
-            messages, self._buffer = self.fetch_v2_message(self._buffer + msg)
-        if len(messages) == 0:
-            return ParseMessageResult.PADDING
-        for message in messages:
-            if message == b"ERROR":
-                return ParseMessageResult.ERROR
-            payload_len = message[4] + (message[5] << 8) - 56
-            payload_type = message[2] + (message[3] << 8)
-            if payload_type in [0x1001, 0x0001]:
-                # Heartbeat detected
-                pass
-            elif len(message) > 56:
-                cryptographic = message[40:-16]
-                if payload_len % 16 == 0:
-                    decrypted = self._security.aes_decrypt(cryptographic)
-                    MideaLogger.debug(f"Received: {decrypted.hex().lower()}")
-                    if status := self._lua_runtime.decode_status(decrypted.hex()):
-                        MideaLogger.debug(f"Decoded: {status}")
-                        new_status = {}
-                        for single in status.keys():
-                            value = status.get(single)
-                            if single not in self._attributes or self._attributes[single] != value:
-                                self._attributes[single] = value
-                                new_status[single] = value
-                        if len(new_status) > 0:
-                            for c in self._calculate_get:
-                                lvalue = c.get("lvalue")
-                                rvalue = c.get("rvalue")
-                                if lvalue and rvalue:
-                                    calculate = False
-                                    for s, v in new_status.items():
-                                        if rvalue.find(f"[{s}]") >= 0:
-                                            calculate = True
-                                            break
-                                    if calculate:
-                                        calculate_str1 = \
-                                            (f"{lvalue.replace('[', 'self._attributes[')} = "
-                                             f"{rvalue.replace('[', 'self._attributes[')}") \
-                                            .replace("[","[\"").replace("]","\"]")
-                                        calculate_str2 = \
-                                            (f"{lvalue.replace('[', 'new_status[')} = "
-                                             f"{rvalue.replace('[', 'self._attributes[')}") \
-                                            .replace("[","[\"").replace("]","\"]")
-                                        try:
-                                            exec(calculate_str1)
-                                            exec(calculate_str2)
-                                        except Exception:
-                                            MideaLogger.warning(
-                                                f"Calculation Error: {lvalue} = {rvalue}", self._device_id
-                                            )
-                            self._update_all(new_status)
-        return ParseMessageResult.SUCCESS
-
-    def _send_heartbeat(self):
-        msg = PacketBuilder(self._device_id, bytearray([0x00])).finalize(msg_type=0)
-        self._send_message(msg)
-
     def _device_connected(self, connected=True):
         self._connected = connected
         status = {"connected": connected}
diff --git a/custom_components/midea_auto_codec/core/lua_runtime.py b/custom_components/midea_auto_codec/core/lua_runtime.py
deleted file mode 100644
index 70e6a82..0000000
--- a/custom_components/midea_auto_codec/core/lua_runtime.py
+++ /dev/null
@@ -1,91 +0,0 @@
-import lupa
-import threading
-import json
-from .logger import MideaLogger
-
-
-class LuaRuntime:
-    def __init__(self, file):
-        self._runtimes = lupa.LuaRuntime()
-        string = f'dofile("{file}")'
-        self._runtimes.execute(string)
-        self._lock = threading.Lock()
-        self._json_to_data = self._runtimes.eval("function(param) return jsonToData(param) end")
-        self._data_to_json = self._runtimes.eval("function(param) return dataToJson(param) end")
-
-    def json_to_data(self, json_value):
-        with self._lock:
-            result = self._json_to_data(json_value)
-
-        return result
-
-    def data_to_json(self, data_value):
-        with self._lock:
-            result = self._data_to_json(data_value)
-        return result
-
-
-class MideaCodec(LuaRuntime):
-    def __init__(self, file, sn=None, subtype=None):
-        super().__init__(file)
-        self._sn = sn
-        self._subtype = subtype
-
-    def _build_base_dict(self):
-        device_info ={}
-        if self._sn is not None:
-            device_info["deviceSN"] = self._sn
-        if self._subtype is not None:
-            device_info["deviceSubType"] = self._subtype
-        base_dict = {
-            "deviceinfo": device_info
-        }
-        return base_dict
-
-    def build_query(self, append=None):
-        query_dict = self._build_base_dict()
-        query_dict["query"] = {} if append is None else append
-        json_str = json.dumps(query_dict)
-        try:
-            result = self.json_to_data(json_str)
-            return result
-        except lupa.LuaError as e:
-            MideaLogger.error(f"LuaRuntimeError in build_query {json_str}: {repr(e)}")
-        return None
-
-    def build_control(self, append=None):
-        query_dict = self._build_base_dict()
-        query_dict["control"] = {} if append is None else append
-        json_str = json.dumps(query_dict)
-        try:
-            result = self.json_to_data(json_str)
-            return result
-        except lupa.LuaError as e:
-            MideaLogger.error(f"LuaRuntimeError in build_control {json_str}: {repr(e)}")
-            return None
-
-    def build_status(self, append=None):
-        query_dict = self._build_base_dict()
-        query_dict["status"] = {} if append is None else append
-        json_str = json.dumps(query_dict)
-        try:
-            result = self.json_to_data(json_str)
-            return result
-        except lupa.LuaError as e:
-            MideaLogger.error(f"LuaRuntimeError in build_status {json_str}: {repr(e)}")
-            return None
-
-    def decode_status(self, data: str):
-        data_dict = self._build_base_dict()
-        data_dict["msg"] = {
-            "data": data
-        }
-        json_str = json.dumps(data_dict)
-        try:
-            result = self.data_to_json(json_str)
-            status = json.loads(result)
-            return status.get("status")
-        except lupa.LuaError as e:
-            MideaLogger.error(f"LuaRuntimeError in decode_status {data}: {repr(e)}")
-        return None
-
diff --git a/custom_components/midea_auto_codec/fan.py b/custom_components/midea_auto_codec/fan.py
index 120e787..0d5c65c 100644
--- a/custom_components/midea_auto_codec/fan.py
+++ b/custom_components/midea_auto_codec/fan.py
@@ -17,7 +17,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.FAN, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")
diff --git a/custom_components/midea_auto_codec/manifest.json b/custom_components/midea_auto_codec/manifest.json
index 6fc5aee..43c255d 100644
--- a/custom_components/midea_auto_codec/manifest.json
+++ b/custom_components/midea_auto_codec/manifest.json
@@ -6,6 +6,6 @@
   "documentation": "https://github.com/sususweet/midea-auto-codec#readme",
   "iot_class": "cloud_push",
   "issue_tracker": "https://github.com/sususweet/midea-auto-codec/issues",
-  "requirements": ["lupa>=2.0"],
-  "version": "v0.0.3"
+  "requirements": [],
+  "version": "v0.0.5"
 }
\ No newline at end of file
diff --git a/custom_components/midea_auto_codec/select.py b/custom_components/midea_auto_codec/select.py
index f190ff6..5d436a5 100644
--- a/custom_components/midea_auto_codec/select.py
+++ b/custom_components/midea_auto_codec/select.py
@@ -17,7 +17,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.SELECT, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")
diff --git a/custom_components/midea_auto_codec/sensor.py b/custom_components/midea_auto_codec/sensor.py
index 409fed9..218d148 100644
--- a/custom_components/midea_auto_codec/sensor.py
+++ b/custom_components/midea_auto_codec/sensor.py
@@ -26,7 +26,7 @@ async def async_setup_entry(
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.SENSOR, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")
diff --git a/custom_components/midea_auto_codec/water_heater.py b/custom_components/midea_auto_codec/water_heater.py
index 9893b6d..f79301a 100644
--- a/custom_components/midea_auto_codec/water_heater.py
+++ b/custom_components/midea_auto_codec/water_heater.py
@@ -20,7 +20,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
     for device_id, info in device_list.items():
         device_type = info.get("type")
         sn8 = info.get("sn8")
-        config = load_device_config(hass, device_type, sn8) or {}
+        config = await load_device_config(hass, device_type, sn8) or {}
         entities_cfg = (config.get("entities") or {}).get(Platform.WATER_HEATER, {})
         manufacturer = config.get("manufacturer")
         rationale = config.get("rationale")