diff --git a/lib/base_accessory.js b/lib/base_accessory.js
index 99dddd84..d5dbd274 100644
--- a/lib/base_accessory.js
+++ b/lib/base_accessory.js
@@ -51,7 +51,7 @@ class BaseAccessory {
     }
 
     // Service
-    if (this.subServices.length == 0) {
+    if (this.subServices.length == 0 || this.subServices.length == 1) {
       // Service
       this.service = this.homebridgeAccessory.getService(this.serviceType);
       if (this.service) {
diff --git a/lib/outlet_accessory.js b/lib/outlet_accessory.js
index 82bfef25..2db81f14 100644
--- a/lib/outlet_accessory.js
+++ b/lib/outlet_accessory.js
@@ -38,7 +38,12 @@ class OutletAccessory extends BaseAccessory {
         continue;
       }
       var value = status.value
-      const service = this.homebridgeAccessory.getService(subType);
+      let service 
+      if (this.subTypeArr.length == 1) {
+        service = this.service;
+      }else{
+        service = this.homebridgeAccessory.getService(subType);
+      }
       this.setCachedState(service.displayName, value);
       if (this.isRefresh) {
         service
diff --git a/lib/switch_accessory.js b/lib/switch_accessory.js
index 333b3dc3..d4a12221 100644
--- a/lib/switch_accessory.js
+++ b/lib/switch_accessory.js
@@ -35,7 +35,12 @@ class SwitchAccessory extends BaseAccessory {
         continue;
       }
       var value = status.value
-      const service = this.homebridgeAccessory.getService(subType);
+      let service 
+      if (this.subTypeArr.length == 1) {
+        service = this.service;
+      }else{
+        service = this.homebridgeAccessory.getService(subType);
+      }
       this.setCachedState(service.displayName, value);
       if (this.isRefresh) {
         service
diff --git a/lib/tuyaopenapi.js b/lib/tuyaopenapi.js
index 604a0489..3bb7765e 100644
--- a/lib/tuyaopenapi.js
+++ b/lib/tuyaopenapi.js
@@ -170,7 +170,7 @@ class TuyaOpenAPI {
       'lang': this.lang,
       'dev_lang': 'javascript',
       'dev_channel': 'homebridge',
-      'devVersion': '1.4.0',
+      'devVersion': '1.4.1',
       
     };
     this.log.log(`TuyaOpenAPI request: method = ${method}, endpoint = ${this.endpoint}, path = ${path}, params = ${JSON.stringify(params)}, body = ${JSON.stringify(body)}, headers = ${JSON.stringify(headers)}`);
diff --git a/lib/tuyashopenapi.js b/lib/tuyashopenapi.js
index 428e6d5b..6af519a0 100644
--- a/lib/tuyashopenapi.js
+++ b/lib/tuyashopenapi.js
@@ -2,17 +2,17 @@ const axios = require('axios').default;
 const Crypto = require('crypto-js');
 const uuid = require('uuid');
 const nonce = uuid.v1();
-const DEFAULT_ENDPOINT = 'https://openapi.tuyacn.com';
 class TuyaSHOpenAPI {
 
   constructor(accessId, accessKey, username, password, countryCode, appSchema, log, lang = 'en') {
-    this.endpoint = DEFAULT_ENDPOINT;
+    this.countryCode = countryCode;
+    this.endpoint = (this.countryCode && this.countryCode == 86)? 'https://openapi.tuyacn.com' : 'https://openapi.tuyaus.com'
     this.access_id = accessId;
     this.access_key = accessKey;
     this.lang = lang;
     this.username = username;
     this.password = password;
-    this.countryCode = countryCode;
+    
     this.appSchema = appSchema;
     this.log = log;
 
@@ -46,7 +46,7 @@ class TuyaSHOpenAPI {
       'schema': this.appSchema
     });
     let { access_token, refresh_token, uid, expire_time , platform_url} = res.result;
-    this.endpoint = platform_url ? platform_url : DEFAULT_ENDPOINT;
+    this.endpoint = platform_url ? platform_url : this.endpoint;
     this.tokenInfo = {
       access_token: access_token,
       refresh_token: refresh_token,
@@ -164,7 +164,7 @@ class TuyaSHOpenAPI {
       'lang': this.lang,
       'dev_lang': 'javascript',
       'dev_channel': 'homebridge',
-      'devVersion': '1.4.0',
+      'devVersion': '1.4.1',
 
     };
     this.log.log(`TuyaOpenAPI request: method = ${method}, endpoint = ${this.endpoint}, path = ${path}, params = ${JSON.stringify(params)}, body = ${JSON.stringify(body)}, headers = ${JSON.stringify(headers)}`);
diff --git a/package.json b/package.json
index 053f65e0..057f1894 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "homebridge-tuya-platform",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "Official Homebridge plugin for Tuya Open API, maintained by the Tuya Developer Team.",
   "main": "index.js",
   "scripts": {