diff --git a/example/mq.py b/example/mq.py
index 86e0ef4..f629c38 100644
--- a/example/mq.py
+++ b/example/mq.py
@@ -1,13 +1,14 @@
 import logging
-from tuya_iot import TuyaOpenAPI, TuyaOpenMQ, tuya_logger
+from tuya_iot import TuyaOpenAPI, TuyaOpenMQ, TUYA_LOGGER
 
 from env import ENDPOINT, ACCESS_ID, ACCESS_KEY, USERNAME, PASSWORD
 
-tuya_logger.setLevel(logging.DEBUG)
+
+TUYA_LOGGER.setLevel(logging.DEBUG)
 
 # Init
 openapi = TuyaOpenAPI(ENDPOINT, ACCESS_ID, ACCESS_KEY)
-openapi.connect(USERNAME, PASSWORD)
+openapi.connect(USERNAME, PASSWORD, "86", 'tuyaSmart')
 
 
 # Receive device message
diff --git a/tuya_iot/device.py b/tuya_iot/device.py
index 74d193c..c38bffa 100644
--- a/tuya_iot/device.py
+++ b/tuya_iot/device.py
@@ -625,7 +625,7 @@ def get_category_functions(self, categoryId: str) -> dict[str, Any]:
 
     # https://developer.tuya.com/en/docs/cloud/device-control?id=K95zu01ksols7#title-27-Get%20the%20specifications%20and%20properties%20of%20the%20device%2C%20including%20the%20instruction%20set%20and%20status%20set
     def get_device_specification(self, device_id: str) -> dict[str, str]:
-        return self.api.get(f"/v1.0/devices/{device_id}/specifications")
+        return self.api.get(f"/v1.2/iot-03/devices/{device_id}/specification")
 
     def get_device_stream_allocate(
         self, device_id: str, stream_type: Literal["flv", "hls", "rtmp", "rtsp"]
@@ -693,7 +693,7 @@ def get_category_functions(self, categoryId: str) -> dict[str, Any]:
 
     # https://developer.tuya.com/en/docs/cloud/device-control?id=K95zu01ksols7#title-27-Get%20the%20specifications%20and%20properties%20of%20the%20device%2C%20including%20the%20instruction%20set%20and%20status%20set
     def get_device_specification(self, device_id: str) -> dict[str, str]:
-        return self.api.get(f"/v1.0/iot-03/devices/{device_id}/specification")
+        return self.api.get(f"/v1.2/iot-03/devices/{device_id}/specification")
 
     def get_device_stream_allocate(
         self, device_id: str, stream_type: Literal["flv", "hls", "rtmp", "rtsp"]
diff --git a/tuya_iot/openapi.py b/tuya_iot/openapi.py
index 493f593..f136d5c 100644
--- a/tuya_iot/openapi.py
+++ b/tuya_iot/openapi.py
@@ -15,7 +15,8 @@
 
 TUYA_ERROR_CODE_TOKEN_INVALID = 1010
 
-TO_C_REFRESH_TOKEN_API_PRE = "/v1.0/iot-03/users/token/"
+TO_C_CUSTOM_REFRESH_TOKEN_API = "/v1.0/iot-03/users/token/"
+TO_C_SMART_HOME_REFRESH_TOKEN_API = "v1.0/token"
 
 TO_C_CUSTOM_TOKEN_API = "/v1.0/iot-03/users/login"
 TO_C_SMART_HOME_TOKEN_API = "/v1.0/iot-01/associated-users/actions/authorized-login"
@@ -154,9 +155,15 @@ def __refresh_access_token_if_need(self, path: str):
             return
 
         self.token_info.access_token = ""
-        response = self.post(
-            TO_C_REFRESH_TOKEN_API_PRE + self.token_info.refresh_token
-        )
+
+        if self.auth_type == AuthType.CUSTOM:
+            response = self.post(
+                TO_C_CUSTOM_REFRESH_TOKEN_API + self.token_info.refresh_token
+            )
+        else:
+            response = self.post(
+                TO_C_SMART_HOME_REFRESH_TOKEN_API + self.token_info.refresh_token
+            )
 
         self.token_info = TuyaTokenInfo(response)
 
@@ -241,7 +248,9 @@ def __request(
             "lang": self.lang,
         }
 
-        if path == self.__login_path or path.startswith(TO_C_REFRESH_TOKEN_API_PRE):
+        if path == self.__login_path or \
+            path.startswith(TO_C_CUSTOM_REFRESH_TOKEN_API) or\
+            path.startswith(TO_C_SMART_HOME_REFRESH_TOKEN_API):
             headers["dev_lang"] = "python"
             headers["dev_version"] = VERSION
             headers["dev_channel"] = self.dev_channel
diff --git a/tuya_iot/openmq.py b/tuya_iot/openmq.py
index aaa2b69..2d6bbba 100644
--- a/tuya_iot/openmq.py
+++ b/tuya_iot/openmq.py
@@ -13,7 +13,7 @@
 from Crypto.Cipher import AES
 from paho.mqtt import client as mqtt
 
-from .openapi import TuyaOpenAPI
+from .openapi import TO_C_SMART_HOME_REFRESH_TOKEN_API, TuyaOpenAPI
 from .openlogging import logger
 from .tuya_enums import AuthType
 
@@ -21,6 +21,9 @@
 GCM_TAG_LENGTH = 16
 CONNECT_FAILED_NOT_AUTHORISED = 5
 
+TO_C_CUSTOM_MQTT_CONFIG_API = "/v1.0/iot-03/open-hub/access-config"
+TO_C_SMART_HOME_MQTT_CONFIG_API = "/v1.0/open-hub/access/config"
+
 
 class TuyaMQConfig:
     """Tuya mqtt config."""
@@ -57,7 +60,9 @@ def __init__(self, api: TuyaOpenAPI) -> None:
 
     def _get_mqtt_config(self) -> Optional[TuyaMQConfig]:
         response = self.api.post(
-            "/v1.0/iot-03/open-hub/access-config",
+            TO_C_CUSTOM_MQTT_CONFIG_API
+            if (self.api.auth_type == AuthType.CUSTOM)
+            else TO_C_SMART_HOME_MQTT_CONFIG_API,
             {
                 "uid": self.api.token_info.uid,
                 "link_id": LINK_ID,
@@ -89,16 +94,16 @@ def _decode_mq_message(self, b64msg: str, password: str, t: str) -> dict[str, An
 
             # get iv buffer
             iv_length = int.from_bytes(buffer[0:4], byteorder="big")
-            iv_buffer = buffer[4 : iv_length + 4]
+            iv_buffer = buffer[4: iv_length + 4]
 
             # get data buffer
-            data_buffer = buffer[iv_length + 4 : len(buffer) - GCM_TAG_LENGTH]
+            data_buffer = buffer[iv_length + 4: len(buffer) - GCM_TAG_LENGTH]
 
             # aad
             aad_buffer = str(t).encode("utf8")
 
             # tag
-            tag_buffer = buffer[len(buffer) - GCM_TAG_LENGTH :]
+            tag_buffer = buffer[len(buffer) - GCM_TAG_LENGTH:]
 
             cipher = AES.new(key.encode("utf8"), AES.MODE_GCM, nonce=iv_buffer)
             cipher.update(aad_buffer)
diff --git a/tuya_iot/version.py b/tuya_iot/version.py
index 1b17130..df5fbdf 100644
--- a/tuya_iot/version.py
+++ b/tuya_iot/version.py
@@ -1,3 +1,4 @@
 """tuya_iot version."""
 
-VERSION = "0.6.3"
+VERSION = "0.6.4"
+