diff --git a/miniprogram/pages/connectedDevice/connectedDevice.ts b/miniprogram/pages/connectedDevice/connectedDevice.ts
index f1cf8b4..23bf49c 100644
--- a/miniprogram/pages/connectedDevice/connectedDevice.ts
+++ b/miniprogram/pages/connectedDevice/connectedDevice.ts
@@ -130,17 +130,17 @@ Page({
             })
             .catch((err) => {
                 console.error('[connectedDevice] bindDevice 失败:', err)
-                this._resetAfterBindFail()
+                this._resetAfterBindFail(err)
             })
     },
 
     /** bindDevice 失败后的清理重置：断开连接、清缓存、重置页面状态 */
-    _resetAfterBindFail() {
+    _resetAfterBindFail(err?: any) {
         leFuService.disconnect()
         wx.removeStorageSync('connectDeviceInfo')
         scannedDevices = []
         this.setData({ status: 'idle', deviceList: [] })
-        wx.showToast({ title: '绑定失败，请重试', icon: 'none' })
+        wx.showToast({ title: err?.msg || err?.message || '绑定失败，请重试', icon: 'none' })
     },
 
     /** 将所有卡片置为未连接 */