diff --git a/src/views/devices/sn/config/add.ts b/src/views/devices/sn/config/add.ts
index cb6bbb3a..8f6922ec 100644
--- a/src/views/devices/sn/config/add.ts
+++ b/src/views/devices/sn/config/add.ts
@@ -2,6 +2,24 @@ import DeviceAPI from "@/api/device";
 import type { DeviceForm } from "@/api/device/types";
 import type { CrudFormConfig } from "@/components/Crud/types";
 
+/** 表单不再自动 trim，提交前去掉文本字段首尾空格 */
+function trimText(data: DeviceForm): DeviceForm {
+  const payload = { ...data };
+  for (const key of [
+    "serialno",
+    "snModel",
+    "snName",
+    "snMobile",
+    "snImei",
+    "deviceType",
+    "source",
+  ] as const) {
+    const value = payload[key];
+    if (typeof value === "string") payload[key] = value.trim();
+  }
+  return payload;
+}
+
 const addFormConfig: CrudFormConfig<DeviceForm> = {
   component: "dialog",
   dialog: {
@@ -12,12 +30,12 @@ const addFormConfig: CrudFormConfig<DeviceForm> = {
   form: {
     labelWidth: 100,
   },
-  submitForm: (data) => DeviceAPI.create(data),
+  submitForm: (data) => DeviceAPI.create(trimText(data)),
   fields: [
     {
       label: "设备SN",
       prop: "serialno",
-      rules: [{ required: true, message: "设备SN不能为空", trigger: "blur" }],
+      rules: [{ required: true, whitespace: true, message: "设备SN不能为空", trigger: "blur" }],
       type: "input",
       attrs: {
         placeholder: "请输入设备序列号",
diff --git a/src/views/devices/sn/config/content.ts b/src/views/devices/sn/config/content.ts
index 144afa8c..a5605221 100644
--- a/src/views/devices/sn/config/content.ts
+++ b/src/views/devices/sn/config/content.ts
@@ -1,7 +1,7 @@
 import DeviceAPI from "@/api/device";
 import type { DeviceItem, DeviceQueryParams } from "@/api/device/types";
 import type { CrudTableConfig } from "@/components/Crud/types";
-import { onlineStatus, syncOnlineStatus } from "./online";
+import { syncOnlineStatus, updateOnlineStatus } from "./online";
 
 /** 列表接口不保证带在线状态，加载后批量补齐 */
 async function fetchDevices(params: DeviceQueryParams) {
@@ -9,12 +9,9 @@ async function fetchDevices(params: DeviceQueryParams) {
   syncOnlineStatus(page.list);
   const sns = page.list.map((item) => item.serialno).filter((sn): sn is string => !!sn);
   if (sns.length) {
-    await DeviceAPI.getOnlineStatusBatch(sns)
-      .then((onlineMap) => {
-        Object.values(onlineMap ?? {}).forEach((info) => {
-          if (info?.serialno) onlineStatus[info.serialno] = info.online ?? 0;
-        });
-      })
+    // 在线状态后补，不阻塞列表首屏
+    void DeviceAPI.getOnlineStatusBatch(sns)
+      .then((onlineMap) => Object.values(onlineMap ?? {}).forEach(updateOnlineStatus))
       .catch(() => undefined);
   }
   return page;
diff --git a/src/views/devices/sn/config/edit.ts b/src/views/devices/sn/config/edit.ts
index b899c6d1..dd1200eb 100644
--- a/src/views/devices/sn/config/edit.ts
+++ b/src/views/devices/sn/config/edit.ts
@@ -15,15 +15,14 @@ const editFormConfig: CrudFormConfig<DeviceForm> = {
     labelWidth: 100,
   },
   // 编辑只回传可修改字段（仅设备昵称与状态）
-  submitForm: (data) =>
-    DeviceAPI.update(
-      data.id as string,
-      {
-        id: data.id,
-        snName: data.snName,
-        status: data.status,
-      } as DeviceForm,
-    ),
+  submitForm: (data) => {
+    const payload = {
+      id: data.id,
+      snName: data.snName?.trim(),
+      status: data.status,
+    } as DeviceForm;
+    return DeviceAPI.update(payload.id as string, payload);
+  },
   fields: [
     {
       label: "设备SN",
@@ -38,7 +37,7 @@ const editFormConfig: CrudFormConfig<DeviceForm> = {
     {
       label: "设备昵称",
       prop: "snName",
-      rules: [{ required: true, message: "设备昵称不能为空", trigger: "blur" }],
+      rules: [{ required: true, whitespace: true, message: "设备昵称不能为空", trigger: "blur" }],
       type: "input",
       attrs: {
         placeholder: "请输入设备昵称",