diff --git a/src/App.vue b/src/App.vue
index 408c114..157411b 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -10,10 +10,11 @@ import type {ControlMsg, ServerMsg} from "@/api";
 import {ControlEvent, ControlMsgType} from "@/api";
 import {routeCtrlMsg, routeModuleServerMsg} from "@/router/msgRouter";
 import {globalNotify} from "@/composables/notification";
-import {isDevMode} from "@/composables/buildMode";
+import {getTrialDate, isDevMode, isOTAEnabled, isTrialMode} from "@/composables/buildMode";
 import {useSystemModule} from "@/composables/useSystemModule";
 import {useDataFlowModule} from "@/composables/useDataFlowModule";
 import {useUpdateModule} from "@/composables/useUpdateModule";
+import {ElMessageBox} from "element-plus";
 
 const wsState = useWsStore();
 
@@ -53,7 +54,16 @@ onMounted(() => {
 
   useSystemModule();
   useDataFlowModule();
-  useUpdateModule();
+
+  if (isOTAEnabled()) {
+    useUpdateModule();
+  }
+
+  if (isTrialMode()) {
+    ElMessageBox.alert('感谢您试用串口透传固件，如果觉得好用，可购买标准版支持我，谢谢！', getTrialDate(), {
+      confirmButtonText: '好的',
+    });
+  }
 });
 
 onUnmounted(() => {
diff --git a/src/composables/buildMode.ts b/src/composables/buildMode.ts
index 840a858..50037c8 100644
--- a/src/composables/buildMode.ts
+++ b/src/composables/buildMode.ts
@@ -1,3 +1,15 @@
 export function isDevMode() {
     return import.meta.env.VITE_APP_MODE === 'dev';
-}
\ No newline at end of file
+}
+
+export function isOTAEnabled() {
+    return import.meta.env.VITE_ENABLE_OTA === 'true';
+}
+
+export function isTrialMode() {
+    return import.meta.env.VITE_TRIAL_MODE === "true"
+}
+
+export function getTrialDate() {
+    return import.meta.env.VITE_TRIAL_DATE || "1970-01-01";
+}
diff --git a/src/router/index.ts b/src/router/index.ts
index 4101877..a33166c 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -7,6 +7,7 @@ import Uart from '@/views/Uart.vue'
 import Page404 from '@/views/404.vue'
 import Update from '@/views/Update.vue'
 import {translate} from "@/locales";
+import {isOTAEnabled} from "@/composables/buildMode";
 
 
 const router = createRouter({
@@ -43,7 +44,7 @@ const router = createRouter({
             path: '/update:ext(.*)',
             meta: {title: translate('page.update')},
             name: 'update',
-            component: Update,
+            component: isOTAEnabled() ? Update : Page404,
         }, {
             path: '/:catchAll(.*)', // This will match all paths that aren't matched by above routes
             name: 'NotFound',
diff --git a/src/views/navigation/NavBar.vue b/src/views/navigation/NavBar.vue
index 3f790fa..942f0cf 100644
--- a/src/views/navigation/NavBar.vue
+++ b/src/views/navigation/NavBar.vue
@@ -115,6 +115,7 @@ import {ControlEvent} from "@/api";
 import {useRoute} from "vue-router";
 import { useFullscreen } from '@vueuse/core'
 import {useUpdateStore} from "@/stores/useUpdateStore";
+import {isOTAEnabled} from "@/composables/buildMode";
 
 const wsStore = useWsStore();
 const updateStore = useUpdateStore();
@@ -178,12 +179,16 @@ const sideBarItems: Item[] = ([
   }, {
     name: translate("page.feedback"),
     href: "/feedback",
-  }, {
+  },
+]);
+
+if (isOTAEnabled()) {
+  sideBarItems.push({
     name: translate("page.update"),
     href: "/update",
     badge: computed(() => updateStore.canUpdate),
-  },
-]);
+  })
+}
 
 </script>