diff --git a/Assets/Res/ui/deviceinfopage/设备用户管理.prefab b/Assets/Res/ui/deviceinfopage/设备用户管理.prefab
index 143305a..da35dad 100644
--- a/Assets/Res/ui/deviceinfopage/设备用户管理.prefab
+++ b/Assets/Res/ui/deviceinfopage/设备用户管理.prefab
@@ -972,6 +972,8 @@ GameObject:
   - component: {fileID: 6156444094017917638}
   - component: {fileID: 196291696332333663}
   - component: {fileID: 6174687206804186718}
+  - component: {fileID: 6802373552931830562}
+  - component: {fileID: 7282265199794192874}
   m_Layer: 5
   m_Name: "\u88AB\u5206\u4EAB\u8005\u5217\u8868"
   m_TagString: Untagged
@@ -1037,6 +1039,49 @@ MonoBehaviour:
   m_OnValueChanged:
     m_PersistentCalls:
       m_Calls: []
+--- !u!114 &6802373552931830562
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7074308004564379890}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 31a19414c41e5ae4aae2af33fee712f6, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_ShowMaskGraphic: 0
+--- !u!114 &7282265199794192874
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7074308004564379890}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: fe87c0e1cc204ed48ad3b37840f39efc, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Material: {fileID: 0}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_RaycastTarget: 1
+  m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
+  m_Maskable: 1
+  m_OnCullStateChanged:
+    m_PersistentCalls:
+      m_Calls: []
+  m_Sprite: {fileID: 0}
+  m_Type: 0
+  m_PreserveAspect: 0
+  m_FillCenter: 1
+  m_FillMethod: 4
+  m_FillAmount: 1
+  m_FillClockwise: 1
+  m_FillOrigin: 0
+  m_UseSpriteMesh: 0
+  m_PixelsPerUnitMultiplier: 1
 --- !u!1 &7279844199628844094
 GameObject:
   m_ObjectHideFlags: 0
diff --git a/Assets/Scenes/MainScene.unity b/Assets/Scenes/MainScene.unity
index 4609ca9..4d8f94b 100644
--- a/Assets/Scenes/MainScene.unity
+++ b/Assets/Scenes/MainScene.unity
@@ -855,7 +855,7 @@ Camera:
   m_Enabled: 1
   serializedVersion: 2
   m_ClearFlags: 2
-  m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0}
+  m_BackGroundColor: {r: 0, g: 0, b: 0, a: 0}
   m_projectionMatrixMode: 1
   m_GateFitMode: 2
   m_FOVAxisMode: 0
diff --git a/Assets/Scripts/Managers/DataBase.cs b/Assets/Scripts/Managers/DataBase.cs
index 27c40d9..9af9211 100644
--- a/Assets/Scripts/Managers/DataBase.cs
+++ b/Assets/Scripts/Managers/DataBase.cs
@@ -571,11 +571,65 @@ namespace Kill.Managers
         }
 
         /// <summary>
-        /// 将枚举值转换为服务器配置字符串（小写）
+        /// 将枚举值转换为服务器配置字符串（大写）
         /// </summary>
         public static string ToServerString<T>(T enumValue) where T : struct
         {
-            return enumValue.ToString().ToLower();
+            return enumValue.ToString().ToUpper();
+        }
+
+        /// <summary>
+        /// 深拷贝当前配置
+        /// </summary>
+        public DeviceConfig Clone()
+        {
+            var clone = new DeviceConfig();
+            var fields = typeof(DeviceConfig).GetFields(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
+            foreach (var field in fields)
+            {
+                var value = field.GetValue(this);
+                if (value != null)
+                {
+                    // 值类型和字符串直接赋值即可
+                    field.SetValue(clone, value);
+                }
+            }
+            return clone;
+        }
+
+        /// <summary>
+        /// 获取与原始配置相比发生变化的字段（包含 device_sn）
+        /// </summary>
+        /// <param name="original">原始配置</param>
+        /// <returns>变化字段字典，key 为字段名，value 为当前值；若无变化返回空字典</returns>
+        public Dictionary<string, object> GetChangedFields(DeviceConfig original)
+        {
+            var changed = new Dictionary<string, object>();
+            if (original == null)
+            {
+                // 没有原始配置时，认为所有非空字段都发生变化
+                var allFields = typeof(DeviceConfig).GetFields(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
+                foreach (var field in allFields)
+                {
+                    var value = field.GetValue(this);
+                    if (value != null)
+                        changed[field.Name] = value;
+                }
+                return changed;
+            }
+
+            var fields = typeof(DeviceConfig).GetFields(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
+            foreach (var field in fields)
+            {
+                var currentValue = field.GetValue(this);
+                var originalValue = field.GetValue(original);
+
+                if (!Equals(currentValue, originalValue))
+                {
+                    changed[field.Name] = currentValue;
+                }
+            }
+            return changed;
         }
     }
 
diff --git a/Assets/Scripts/Managers/DataManager.cs b/Assets/Scripts/Managers/DataManager.cs
index c7a29c9..4aa1a35 100644
--- a/Assets/Scripts/Managers/DataManager.cs
+++ b/Assets/Scripts/Managers/DataManager.cs
@@ -98,6 +98,8 @@ namespace Kill.Managers
             }
         }
         public DeviceConfig deviceConfig;
+        // 从服务器获取的原始配置快照，用于比对变化字段
+        private DeviceConfig _originalDeviceConfig;
         #region 设备配置
 
         /// <summary>
@@ -115,7 +117,9 @@ namespace Kill.Managers
                 onSuccess: (data) =>
                 {
                     result = data.data;
-                    deviceConfig=result;
+                    deviceConfig = result;
+                    // 保存原始快照，用于后续差异对比
+                    _originalDeviceConfig = result?.Clone();
                 },
                 onError: (code, msg) =>
                 {
@@ -125,16 +129,31 @@ namespace Kill.Managers
         }
 
         /// <summary>
-        /// 修改设备配置（空值字段不会被修改）
+        /// 修改设备配置（只提交与原始配置相比发生变化的字段）
         /// </summary>
-        public async Task<bool> UpdateDeviceConfig(string deviceSn, DeviceConfig config)
+        /// <param name="deviceSn">设备 MAC/序列号</param>
+        /// <param name="config">当前设备配置</param>
+        /// <param name="original">原始配置快照，传 null 时会提交所有非空字段</param>
+        public async Task<bool> UpdateDeviceConfig(string deviceSn, DeviceConfig config, DeviceConfig original = null)
         {
+            if (config == null)
+            {
+                Debug.LogError("[DataManager] UpdateDeviceConfig: config 为 null");
+                return false;
+            }
+
             config.device_sn = deviceSn;
+            var changedFields = config.GetChangedFields(original);
+            // device_sn 必须始终携带
+            changedFields["device_sn"] = deviceSn;
 
-            // 构建JSON，跳过null值字段
-            string json = BuildDeviceConfigJson(config);
+            if (changedFields.Count == 0)
+            {
+                Debug.Log("[DataManager] UpdateDeviceConfig: 没有字段变化，跳过同步");
+                return true;
+            }
 
-            var response = await NetworkCtrl.Instance.Post<NoDataResponse>("/api/v1/device/config", json);
+            var response = await NetworkCtrl.Instance.Put<NoDataResponse>("/api/v1/device/config", changedFields);
 
             bool success = false;
             ResponseCodeHandler.HandleResponse(response,
@@ -231,11 +250,17 @@ namespace Kill.Managers
 
         /// <summary>
         /// 同步设备配置到服务器（WiFi在线时调用，由各设置页面Sync方法调用）
+        /// 只提交与原始配置相比发生变化的字段
         /// </summary>
         public async void SyncDeviceConfigToServer()
         {
             if (!hasWifi) return;
-            await UpdateDeviceConfig(selectedDevice.ble_mac, deviceConfig);
+            bool success = await UpdateDeviceConfig(selectedDevice.ble_mac, deviceConfig, _originalDeviceConfig);
+            if (success)
+            {
+                // 同步成功后刷新原始快照
+                _originalDeviceConfig = deviceConfig?.Clone();
+            }
         }
 
         /// <summary>
@@ -249,8 +274,8 @@ namespace Kill.Managers
                 tasks = tasks
             };
 
-            var response = await NetworkCtrl.Instance.Post<NoDataResponse>(
-                "/api/v1/device/schedule-tasks", JsonUtility.ToJson(requestData));
+            var response = await NetworkCtrl.Instance.Put<NoDataResponse>(
+                "/api/v1/device/schedule-tasks", requestData);
 
             bool success = false;
             ResponseCodeHandler.HandleResponse(response,
@@ -278,8 +303,8 @@ namespace Kill.Managers
                 fingerprints = fingerprints
             };
 
-            var response = await NetworkCtrl.Instance.Post<NoDataResponse>(
-                "/api/v1/device/fingerprints", JsonUtility.ToJson(requestData));
+            var response = await NetworkCtrl.Instance.Put<NoDataResponse>(
+                "/api/v1/device/fingerprints", requestData);
 
             bool success = false;
             ResponseCodeHandler.HandleResponse(response,
@@ -303,7 +328,7 @@ namespace Kill.Managers
         {
             var response = await NetworkCtrl.Instance.Get<FingerprintListResponse>(
                 "/api/v1/device/fingerprints",
-                new Dictionary<string, string> { { "device_sn", selectedDevice.device_sn } }
+                new Dictionary<string, string> { { "device_sn", selectedDevice.ble_mac } }
             );
 
             ResponseCodeHandler.HandleResponse(response,
diff --git a/Assets/Scripts/Network/HttpRequestManager.cs b/Assets/Scripts/Network/HttpRequestManager.cs
index 4fb035f..cf4ef49 100644
--- a/Assets/Scripts/Network/HttpRequestManager.cs
+++ b/Assets/Scripts/Network/HttpRequestManager.cs
@@ -171,8 +171,8 @@ namespace Kill.Network
         /// </summary>
         public async Task<HttpResponse<T>> Put<T>(string url, object data, HttpRequestConfig config = null)
         {
-            string jsonData = data != null ? JsonUtility.ToJson(data) : "";
-            Debug.Log(jsonData);
+            string jsonData = data != null ? JsonConvert.SerializeObject(data) : "";
+            Debug.Log("发送数据：" + jsonData);
             return await SendRequest<T>(url, HttpMethod.PUT, jsonData, config, "application/json");
         }
 
diff --git a/Assets/Scripts/UI/Pages/DeviceInfoPage/DeviceInfoPage.cs b/Assets/Scripts/UI/Pages/DeviceInfoPage/DeviceInfoPage.cs
index c9ca9bf..40a1c67 100644
--- a/Assets/Scripts/UI/Pages/DeviceInfoPage/DeviceInfoPage.cs
+++ b/Assets/Scripts/UI/Pages/DeviceInfoPage/DeviceInfoPage.cs
@@ -100,12 +100,23 @@ namespace Kill.UI.Pages
            {
                Loom.QueueOnMainThread(() =>
                {
-                   foreach (var user in UserListResponse.Users)
+                   // 将蓝牙用户列表同步到本地，供后续上传到服务器使用
+                   DataManager.Instance.fingerprintUserDatas.Clear();
+                   if (UserListResponse.Users != null)
                    {
-                       if (user.Username == nowUserid)
+                       foreach (var user in UserListResponse.Users)
                        {
-                           bool isfingerOn = user.HasFingerprint;
-                           break;
+                           DataManager.Instance.fingerprintUserDatas.Add(new FingerprintUserData
+                           {
+                               username = user.Username,
+                               fingerprint_id = user.FingerprintId,
+                               has_fingerprint = user.HasFingerprint
+                           });
+
+                           if (user.Username == nowUserid)
+                           {
+                               isfingerOn = user.HasFingerprint;
+                           }
                        }
                    }
                    initActions.Remove(ReadFingerprint);
@@ -159,7 +170,8 @@ namespace Kill.UI.Pages
                    if (response.IsSuccess)
                    {
                        fingerTip.SetActive(true);
-                       // 录制成功，同步到服务器
+                       // 录制成功，更新当前用户指纹状态并同步到服务器
+                       UpdateLocalFingerprintState(nowUserid, true);
                        await SyncFingerprintsToServerAsync();
                        LoadingUI.Hide();
                    }
@@ -171,11 +183,33 @@ namespace Kill.UI.Pages
            });
         }
 
+        /// <summary>
+        /// 更新本地 fingerprintUserDatas 中指定用户的指纹状态
+        /// </summary>
+        private void UpdateLocalFingerprintState(string username, bool hasFingerprint)
+        {
+            var list = DataManager.Instance.fingerprintUserDatas;
+            var existing = list.Find(u => u.username == username);
+            if (existing.username != null)
+            {
+                existing.has_fingerprint = hasFingerprint;
+            }
+            else
+            {
+                list.Add(new FingerprintUserData
+                {
+                    username = username,
+                    fingerprint_id = 0,
+                    has_fingerprint = hasFingerprint
+                });
+            }
+        }
+
         private async Task SyncFingerprintsToServerAsync()
         {
             if (!DataManager.Instance.hasWifi) return;
             await DataManager.Instance.UpdateFingerprintsToServer(
-                DataManager.Instance.selectedDevice.device_sn,
+                DataManager.Instance.selectedDevice.ble_mac,
                 DataManager.Instance.fingerprintUserDatas);
         }
 
diff --git a/Assets/Scripts/UI/Pages/DeviceInfoPage/LCDSetting.cs b/Assets/Scripts/UI/Pages/DeviceInfoPage/LCDSetting.cs
index d213951..079d7c9 100644
--- a/Assets/Scripts/UI/Pages/DeviceInfoPage/LCDSetting.cs
+++ b/Assets/Scripts/UI/Pages/DeviceInfoPage/LCDSetting.cs
@@ -123,6 +123,8 @@ namespace Kill.UI.Pages
                 {
                     if (success)
                     {
+                        SyncBrightnessConfig();
+                        DataManager.Instance.SyncDeviceConfigToServer();
                         UpdateUI();
                     }
                     else
diff --git a/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs b/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
index 893de38..a695bbc 100644
--- a/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
+++ b/Assets/Scripts/UI/Pages/HomePage/HomePageCtrl.cs
@@ -873,7 +873,7 @@ namespace Kill.UI.Pages
             {
                 deviceCtrl?.InitDeviceControl(false);
                 await DataManager.Instance.GetDeviceConfig(selectedDevice.ble_mac);
-                await DataManager.Instance.GetScheduleTasks(selectedDevice.device_sn);
+                await DataManager.Instance.GetScheduleTasks(selectedDevice.ble_mac);
                 scheduleSettingButton.interactable = true;
                 moreSettingButton.interactable = true;
                 InitDeviceUIFromConfig();
@@ -1612,7 +1612,7 @@ namespace Kill.UI.Pages
                     Debug.Log("[HomePageCtrl] 设备WiFi上线，初始化UI");
                     await DataManager.Instance.GetDeviceConfig(selectedDevice.ble_mac);
                     if (stopPolling) break;
-                    await DataManager.Instance.GetScheduleTasks(selectedDevice.device_sn);
+                    await DataManager.Instance.GetScheduleTasks(selectedDevice.ble_mac);
                     if (stopPolling) break;
                     ScheduleUIUpdate(() =>
                     {
diff --git a/Assets/Scripts/UI/Pages/HomePage/ScheduleSetting/ScheduleSettingPage.cs b/Assets/Scripts/UI/Pages/HomePage/ScheduleSetting/ScheduleSettingPage.cs
index dfb4be9..bc73a92 100644
--- a/Assets/Scripts/UI/Pages/HomePage/ScheduleSetting/ScheduleSettingPage.cs
+++ b/Assets/Scripts/UI/Pages/HomePage/ScheduleSetting/ScheduleSettingPage.cs
@@ -112,7 +112,7 @@ namespace Kill.UI.Pages
             if (DataManager.Instance.hasWifi && !DataManager.Instance.hasBluetooth)
             {
                 Debug.Log("[ScheduleSettingPage] WiFi模式读取定时任务...");
-                await DataManager.Instance.GetScheduleTasks(DataManager.Instance.selectedDevice.device_sn);
+                await DataManager.Instance.GetScheduleTasks(DataManager.Instance.selectedDevice.ble_mac);
                 Debug.Log($"[ScheduleSettingPage] WiFi获取到 {DataManager.Instance.scheduleTaskDatas.Count} 条原始数据");
 
                 // 将API数据转换为ScheduleTask，过滤全0无效任务
@@ -636,7 +636,7 @@ namespace Kill.UI.Pages
                                     });
                                 }
                                 await DataManager.Instance.UpdateScheduleTasksToServer(
-                                    DataManager.Instance.selectedDevice.device_sn, tasksData);
+                                    DataManager.Instance.selectedDevice.ble_mac, tasksData);
                             }
                         }
                         else