diff --git a/miniprogram/lefu/service.ts b/miniprogram/lefu/service.ts
index ed1facb..534102b 100644
--- a/miniprogram/lefu/service.ts
+++ b/miniprogram/lefu/service.ts
@@ -423,6 +423,34 @@ class LeFuService {
 		})
 	}
 
+	// ─── OTA 升级 ─────────────────────────────
+	/**
+	 * 下发 OTA 固件升级指令
+	 * 只负责调用协议层 codeOtaUpdate，是否需要升级、版本比较等业务判断由调用方处理。
+	 */
+	otaUpdate(): Promise<void> {
+		return new Promise((resolve, reject) => {
+			if (!this._activeProtocol) { reject(new Error('设备未连接')); return }
+			this._activeProtocol.codeOtaUpdate((status: number) => {
+				status === 0 ? resolve() : reject(new Error('升级指令下发失败'))
+			})
+		})
+	}
+
+	// ─── 设备初始化 ───────────────────────────
+	/**
+	 * 初始化设备信息
+	 * 下发 codeClearDeviceData('00') 指令清除设备信息，区别于 clearDeviceMembers 的 '01'（清空用户数据）。
+	 */
+	initDevice(): Promise<void> {
+		return new Promise((resolve, reject) => {
+			if (!this._activeProtocol) { reject(new Error('设备未连接')); return }
+			this._activeProtocol.codeClearDeviceData('00', (res: number) => {
+				res === 0 ? resolve() : reject(new Error('请求失败'))
+			})
+		})
+	}
+
 	// ─── 用户同步 ─────────────────────────────
 	/**
 	 * 清空设备内的用户数据
diff --git a/miniprogram/pages/equipment/equipment.less b/miniprogram/pages/equipment/equipment.less
index b42fef2..f727873 100644
--- a/miniprogram/pages/equipment/equipment.less
+++ b/miniprogram/pages/equipment/equipment.less
@@ -294,6 +294,41 @@
 				}
             }
         }
+
+        .device-update {
+            width: 100%;
+            gap: 10px;
+            display: flex;
+            flex-wrap: nowrap;
+            margin-top: 20rpx;
+            justify-content: space-around;
+
+            > view {
+                flex: 1;
+                height: 56rpx;
+                display: flex;
+                flex-wrap: nowrap;
+                align-items: center;
+                justify-content: center;
+                border-radius: 28rpx;
+                border: 2rpx solid #EAECF1;
+
+                > view:nth-of-type(1) {
+                    width: 24rpx;
+                    height: 24rpx;
+                    display: flex;
+                    align-items: center;
+                    margin-right: 6rpx;
+                }
+
+                > view:nth-of-type(2) {
+                    color: #77849E;
+                    height: 24rpx;
+                    font-size: 24rpx;
+                    line-height: 24rpx;
+                }
+            }
+        }
     }
 
     /* 添加设备按钮 */
diff --git a/miniprogram/pages/equipment/equipment.ts b/miniprogram/pages/equipment/equipment.ts
index 0832b2d..0e5ec8e 100644
--- a/miniprogram/pages/equipment/equipment.ts
+++ b/miniprogram/pages/equipment/equipment.ts
@@ -39,6 +39,25 @@ const uploadHistoryData = (data: Record<string, any>) =>
 /** SN 转 MAC：每两位加一个冒号（如 CEE9052031AC → CE:E9:05:20:31:AC） */
 const formatMac = (sn: string) => sn.match(/.{2}/g)?.join(':') ?? ''
 
+/** 服务端固件版本（weighingScale/v2/firmware/version 接口 result 字段） */
+interface FirmwareVersion {
+    mcuVersion: string
+    bleVersion: string
+    wifiVersion: string
+    resVersion: string
+}
+
+/** 获取服务端最新固件版本 */
+const getFirmwareVersion = (modelNumber: string) =>
+    get<FirmwareVersion>('weighingScale/v2/firmware/version', { type: modelNumber }, { loading: false })
+
+/** 判断服务端版本是否比设备版本新（两端都去掉点号后转数字比较） */
+const isServerNewer = (deviceVer: string, serverVer: string) => {
+    const dn = parseInt(deviceVer, 10)
+    const sn = parseInt((serverVer || '').replace(/\./g, ''), 10)
+    return sn > dn
+}
+
 /** 展示用设备项 */
 interface DeviceItem {
     id: string
@@ -327,6 +346,84 @@ Page({
             })
     },
 
+    /** OTA 升级：拉服务端最新版本，比较后下发升级指令 */
+    onTapOta() {
+        const deviceInfo = leFuService.deviceInfo
+        if (!leFuService.isConnected) {
+            wx.showToast({ title: '请先连接设备', icon: 'none' })
+            return
+        }
+        if (!deviceInfo) {
+            wx.showToast({ title: '固件信息未就绪', icon: 'none' })
+            return
+        }
+
+        const { firmwareRevision, modelNumber } = deviceInfo
+        const [mcuVer, bleVer, wifiVer, resVer] = (firmwareRevision || '').split('.')
+        console.log('[OTA] 设备版本', { mcuVer, bleVer, wifiVer, resVer })
+
+        this.setData({ loadingShow: true, loadingTitle: '正在检测新版本' })
+        getFirmwareVersion(modelNumber)
+            .then((res) => {
+                const { mcuVersion, bleVersion, wifiVersion, resVersion } = res.result
+                console.log('[OTA] 服务端版本', { mcuVersion, bleVersion, wifiVersion, resVersion })
+                const needUpdate = isServerNewer(mcuVer, mcuVersion)
+                    || isServerNewer(bleVer, bleVersion)
+                    || isServerNewer(wifiVer, wifiVersion)
+                    || isServerNewer(resVer, resVersion)
+                if (!needUpdate) {
+                    this.setData({ loadingShow: false })
+                    wx.showToast({ title: '已是最新版本', icon: 'none' })
+                    return
+                }
+                this.setData({ loadingTitle: '正在升级' })
+                leFuService.otaUpdate()
+                    .then(() => {
+                        // 升级后设备重启，清空连接信息
+                        leFuService.disconnect()
+                        this.setData({ loadingShow: false })
+                        wx.showToast({ title: '升级指令已下发', icon: 'success' })
+                    })
+                    .catch(() => {
+                        this.setData({ loadingShow: false })
+                        wx.showToast({ title: '升级失败', icon: 'none' })
+                    })
+            })
+            .catch(() => {
+                this.setData({ loadingShow: false })
+            })
+    },
+
+    /** 初始化设备信息 */
+    onTapInit() {
+        if (!leFuService.isConnected) {
+            wx.showToast({ title: '请先连接设备', icon: 'none' })
+            return
+        }
+        wx.showModal({
+            title: '初始化设备',
+            content: '是否确认初始化设备信息？',
+            cancelText: '取消',
+            confirmText: '确定',
+            confirmColor: '#F24439',
+            success: (res) => {
+                if (!res.confirm) return
+                this.setData({ loadingShow: true, loadingTitle: '正在初始化设备' })
+                leFuService.initDevice()
+                    .then(() => {
+                        // 初始化后设备归零，清空连接信息
+                        leFuService.disconnect()
+                        this.setData({ loadingShow: false })
+                        wx.showToast({ title: '初始化完成', icon: 'success' })
+                    })
+                    .catch((err: Error) => {
+                        this.setData({ loadingShow: false })
+                        wx.showToast({ title: err?.message || '初始化失败', icon: 'none' })
+                    })
+            },
+        })
+    },
+
     /** 处理历史数据并上传到后台 */
     _uploadHistory(mainUserId: string, dataList: any[], done?: () => void) {
         if (!dataList || !dataList.length) {
diff --git a/miniprogram/pages/equipment/equipment.wxml b/miniprogram/pages/equipment/equipment.wxml
index a386811..793c800 100644
--- a/miniprogram/pages/equipment/equipment.wxml
+++ b/miniprogram/pages/equipment/equipment.wxml
@@ -107,6 +107,19 @@
                         </view>
                     </block>
                 </view>
+
+                <block wx:if="{{item.status}}">
+                    <view class="device-update">
+                        <view bind:tap="onTapOta">
+                            <view></view>
+                            <view>OTA升级</view>
+                        </view>
+                        <view bind:tap="onTapInit">
+                            <view></view>
+                            <view>初始化</view>
+                        </view>
+                    </view>
+                </block>
             </view>
         </block>
     </block>