diff --git a/src/pages/Measure.tsx b/src/pages/Measure.tsx
index 15aa904..3d97591 100644
--- a/src/pages/Measure.tsx
+++ b/src/pages/Measure.tsx
@@ -8,7 +8,7 @@ import MeasurementCanvas, {
 import { useEffect, useRef, useState } from 'react';
 
 import RailTypeBtn from '../components/RailTypeBtn';
-import { Cascader, Picker, Toast } from 'antd-mobile';
+import { Cascader, Dialog, Picker, Toast } from 'antd-mobile';
 import { useAppDispatch, useAppSelector } from '../utils/hooks';
 import { updateTaskState } from '../store/features/measureSlice';
 import Bridge from '../utils/bridge';
@@ -94,6 +94,15 @@ export default function Measure() {
     // } else {
     //     console.log("当前环境不支持 React Native WebView");
     // }
+	if (!contextState.device.connected) {
+		Dialog.alert({
+			content: '蓝牙未连接，请先连接蓝牙',
+			onConfirm: () => {
+			  navigate("/home/bluetooth");
+			},
+		  })
+		return
+	}
     Bridge.startMeasure().then((res) => {
       if (res.success) {
         dispatch(updateTaskState('START_RECORD_SIG'));
diff --git a/src/pages/Setting.tsx b/src/pages/Setting.tsx
index 960f011..78c4551 100644
--- a/src/pages/Setting.tsx
+++ b/src/pages/Setting.tsx
@@ -27,7 +27,7 @@ export default function Setting() {
   }, [dispatch]);
 
   useEffect(() => {
-    if (addrInput.current) {
+    if (addrInput.current && context.setting.server) {
       addrInput.current!.value = context.setting.server;
     }
   }, [context.setting.server]);