diff --git a/miniprogram/i18n/locales/common.js b/miniprogram/i18n/locales/common.js
index ed378f9..a349d6e 100644
--- a/miniprogram/i18n/locales/common.js
+++ b/miniprogram/i18n/locales/common.js
@@ -18,14 +18,14 @@ module.exports = {
     saveFailed: '保存失败',
     networkError: '网络异常，请重试',
     deviceNotConnected: '设备未连接',
-    // 区域 = IO 纵列布局：left=IO1(0x01) top=IO2(0x02中上) middle=IO3(0x04中)
-    // bottom=IO4(0x08中下) right=IO5(0x10)。key 名沿用，语义以掩码为准。
+    // 区域 = IO↔物理位置（实测）：right=IO1(0x01) left=IO2(0x02) top=IO3(0x04)
+    // middle=IO4(0x08) bottom=IO5(0x10)。语义以掩码为准。
     regions: {
+      right: '右区',
       left: '左区',
-      top: '中上区',
+      top: '上区',
       middle: '中区',
-      bottom: '中下区',
-      right: '右区'
+      bottom: '下区'
     },
     wavelengths: {
       red: '红光',
@@ -53,11 +53,11 @@ module.exports = {
     networkError: 'Network error, please retry',
     deviceNotConnected: 'Device not connected',
     regions: {
+      right: 'Right',
       left: 'Left',
-      top: 'Upper Center',
+      top: 'Top',
       middle: 'Center',
-      bottom: 'Lower Center',
-      right: 'Right'
+      bottom: 'Bottom'
     },
     wavelengths: {
       red: 'Red',
diff --git a/miniprogram/pages/ble-debug/ble-debug.js b/miniprogram/pages/ble-debug/ble-debug.js
index fd2c768..37d1462 100644
--- a/miniprogram/pages/ble-debug/ble-debug.js
+++ b/miniprogram/pages/ble-debug/ble-debug.js
@@ -10,7 +10,7 @@ var WAVES = [
   { key: 'uv', code: 3, label: '紫外' },
   { key: 'yellow', code: 4, label: '暖黄' }
 ]
-var REGION_LABELS = { 1: '左区/IO1', 2: '中上/IO2', 4: '中区/IO3', 8: '中下/IO4', 16: '右区/IO5' }
+var REGION_LABELS = { 1: '右区/IO1', 2: '左区/IO2', 4: '上区/IO3', 8: '中区/IO4', 16: '下区/IO5' }
 var RUN_STATES = { 0: 'IDLE', 1: '检测', 2: '治疗', 255: '故障(0xFF)' }
 
 function hex(bytes) {
diff --git a/miniprogram/pages/ble-debug/ble-debug.wxml b/miniprogram/pages/ble-debug/ble-debug.wxml
index 6a36630..22c3243 100644
--- a/miniprogram/pages/ble-debug/ble-debug.wxml
+++ b/miniprogram/pages/ble-debug/ble-debug.wxml
@@ -37,11 +37,11 @@
     <view class="card">
       <view class="card-title">点分区 → 该区 2 秒治疗（对物理位置）</view>
       <view class="face-map">
-        <view class="face-region forehead" bindtap="onTapRegion" data-mask="2">中上\nIO2</view>
-        <view class="face-region left-cheek" bindtap="onTapRegion" data-mask="1">左\nIO1</view>
-        <view class="face-region right-cheek" bindtap="onTapRegion" data-mask="16">右\nIO5</view>
-        <view class="face-region nose" bindtap="onTapRegion" data-mask="4">中\nIO3</view>
-        <view class="face-region chin" bindtap="onTapRegion" data-mask="8">中下\nIO4</view>
+        <view class="face-region forehead" bindtap="onTapRegion" data-mask="4">上\nIO3</view>
+        <view class="face-region left-cheek" bindtap="onTapRegion" data-mask="2">左\nIO2</view>
+        <view class="face-region right-cheek" bindtap="onTapRegion" data-mask="1">右\nIO1</view>
+        <view class="face-region nose" bindtap="onTapRegion" data-mask="8">中\nIO4</view>
+        <view class="face-region chin" bindtap="onTapRegion" data-mask="16">下\nIO5</view>
       </view>
     </view>
 
diff --git a/miniprogram/pages/manual-treatment/manual-treatment.js b/miniprogram/pages/manual-treatment/manual-treatment.js
index 982dd54..956c78b 100644
--- a/miniprogram/pages/manual-treatment/manual-treatment.js
+++ b/miniprogram/pages/manual-treatment/manual-treatment.js
@@ -22,13 +22,13 @@ Page({
     ],
     selectedFunctionId: 'rejuvenate',
     selectedWavelength: 2,
-    // 掩码 = IO 纵列布局（与 treatment-setup 一致）：左=0x01 中上=0x02 中=0x04 中下=0x08 右=0x10
+    // 掩码 = IO↔物理位置（实测）：右=0x01 左=0x02 上=0x04 中=0x08 下=0x10
     regions: [
-      { key: 'left', mask: 0x01, checked: true },
-      { key: 'top', mask: 0x02, checked: true },
-      { key: 'middle', mask: 0x04, checked: true },
-      { key: 'bottom', mask: 0x08, checked: true },
-      { key: 'right', mask: 0x10, checked: true }
+      { key: 'right', mask: 0x01, checked: true },
+      { key: 'left', mask: 0x02, checked: true },
+      { key: 'top', mask: 0x04, checked: true },
+      { key: 'middle', mask: 0x08, checked: true },
+      { key: 'bottom', mask: 0x10, checked: true }
     ],
     // safety: a single session must NOT exceed 10 minutes (hardware caps at 10).
     durations: [5, 10],
diff --git a/miniprogram/pages/manual-treatment/manual-treatment.wxml b/miniprogram/pages/manual-treatment/manual-treatment.wxml
index 9a8eb68..5d45731 100644
--- a/miniprogram/pages/manual-treatment/manual-treatment.wxml
+++ b/miniprogram/pages/manual-treatment/manual-treatment.wxml
@@ -26,11 +26,11 @@
     <view class="page-title section-title">{{i18n.manual.regionTitle}}</view>
     <!-- 脸型图布局（与「使用设置」一致）；位置↔idx：0=左 1=中上 2=中 3=中下 4=右 -->
     <view class="face-map">
-      <view class="face-region forehead {{regions[1].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="1">{{i18n.common.regions.top}}</view>
-      <view class="face-region left-cheek {{regions[0].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="0">{{i18n.common.regions.left}}</view>
-      <view class="face-region right-cheek {{regions[4].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="4">{{i18n.common.regions.right}}</view>
-      <view class="face-region nose {{regions[2].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="2">{{i18n.common.regions.middle}}</view>
-      <view class="face-region chin {{regions[3].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="3">{{i18n.common.regions.bottom}}</view>
+      <view class="face-region forehead {{regions[2].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="2">{{i18n.common.regions.top}}</view>
+      <view class="face-region left-cheek {{regions[1].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="1">{{i18n.common.regions.left}}</view>
+      <view class="face-region right-cheek {{regions[0].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="0">{{i18n.common.regions.right}}</view>
+      <view class="face-region nose {{regions[3].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="3">{{i18n.common.regions.middle}}</view>
+      <view class="face-region chin {{regions[4].checked ? 'active' : ''}}" bindtap="onToggleRegion" data-idx="4">{{i18n.common.regions.bottom}}</view>
     </view>
 
     <view class="page-title section-title">{{i18n.manual.durationTitle}}</view>
diff --git a/miniprogram/pages/scan-report/scan-report.wxml b/miniprogram/pages/scan-report/scan-report.wxml
index a56d2f3..22e2a44 100644
--- a/miniprogram/pages/scan-report/scan-report.wxml
+++ b/miniprogram/pages/scan-report/scan-report.wxml
@@ -35,26 +35,26 @@
       <view class="card-title">{{i18n.report.faceTitle}}</view>
       <!-- 脸型图（与「使用设置」同款布局）；位置↔faceZones 下标：1=中上 0=左 4=右 2=中 3=中下 -->
       <view class="face-map">
-        <view class="face-region forehead {{faceZones[1].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[1].waveKey}}">
-          <view class="fz-name">{{faceZones[1].name}}</view>
-          <view class="fz-mode" wx:if="{{faceZones[1].hasProblem}}">{{faceZones[1].modeLabel}}</view>
-        </view>
-        <view class="face-region left-cheek {{faceZones[0].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[0].waveKey}}">
-          <view class="fz-name">{{faceZones[0].name}}</view>
-          <view class="fz-mode" wx:if="{{faceZones[0].hasProblem}}">{{faceZones[0].modeLabel}}</view>
-        </view>
-        <view class="face-region right-cheek {{faceZones[4].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[4].waveKey}}">
-          <view class="fz-name">{{faceZones[4].name}}</view>
-          <view class="fz-mode" wx:if="{{faceZones[4].hasProblem}}">{{faceZones[4].modeLabel}}</view>
-        </view>
-        <view class="face-region nose {{faceZones[2].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[2].waveKey}}">
+        <view class="face-region forehead {{faceZones[2].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[2].waveKey}}">
           <view class="fz-name">{{faceZones[2].name}}</view>
           <view class="fz-mode" wx:if="{{faceZones[2].hasProblem}}">{{faceZones[2].modeLabel}}</view>
         </view>
-        <view class="face-region chin {{faceZones[3].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[3].waveKey}}">
+        <view class="face-region left-cheek {{faceZones[1].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[1].waveKey}}">
+          <view class="fz-name">{{faceZones[1].name}}</view>
+          <view class="fz-mode" wx:if="{{faceZones[1].hasProblem}}">{{faceZones[1].modeLabel}}</view>
+        </view>
+        <view class="face-region right-cheek {{faceZones[0].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[0].waveKey}}">
+          <view class="fz-name">{{faceZones[0].name}}</view>
+          <view class="fz-mode" wx:if="{{faceZones[0].hasProblem}}">{{faceZones[0].modeLabel}}</view>
+        </view>
+        <view class="face-region nose {{faceZones[3].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[3].waveKey}}">
           <view class="fz-name">{{faceZones[3].name}}</view>
           <view class="fz-mode" wx:if="{{faceZones[3].hasProblem}}">{{faceZones[3].modeLabel}}</view>
         </view>
+        <view class="face-region chin {{faceZones[4].colorClass}}" bindtap="onTapZone" data-wave="{{faceZones[4].waveKey}}">
+          <view class="fz-name">{{faceZones[4].name}}</view>
+          <view class="fz-mode" wx:if="{{faceZones[4].hasProblem}}">{{faceZones[4].modeLabel}}</view>
+        </view>
       </view>
       <!-- 底部图例：各光简要功效（果果指定保留） -->
       <view class="face-legend">
diff --git a/miniprogram/pages/treating/treating.js b/miniprogram/pages/treating/treating.js
index a3256a0..866a63c 100644
--- a/miniprogram/pages/treating/treating.js
+++ b/miniprogram/pages/treating/treating.js
@@ -23,13 +23,13 @@ Page({
   },
 
   _getRegionText: function (regionMask) {
-    // 掩码 = IO 纵列布局：0x01左 0x02中上 0x04中 0x08中下 0x10右
+    // 掩码 = IO↔物理位置（实测）：0x01右 0x02左 0x04上 0x08中 0x10下
     var REGION_MAP = {
-      1: 'common.regions.left',
-      2: 'common.regions.top',
-      4: 'common.regions.middle',
-      8: 'common.regions.bottom',
-      16: 'common.regions.right'
+      1: 'common.regions.right',
+      2: 'common.regions.left',
+      4: 'common.regions.top',
+      8: 'common.regions.middle',
+      16: 'common.regions.bottom'
     }
     if (regionMask === 0x1F) return i18n.t('treating.allRegions')
     var names = []
diff --git a/miniprogram/pages/treatment-setup/treatment-setup.js b/miniprogram/pages/treatment-setup/treatment-setup.js
index 04e10fc..f21d3cd 100644
--- a/miniprogram/pages/treatment-setup/treatment-setup.js
+++ b/miniprogram/pages/treatment-setup/treatment-setup.js
@@ -34,8 +34,8 @@ Page({
     var app = getApp()
     this.setData({ statusBarHeight: app.globalData.statusBarHeight })
     i18n.bind(this)
-    // 顺序对应 data.regions 的掩码 0x01..0x10（IO1..IO5 = 左/中上/中/中下/右）
-    var regionKeys = ['left', 'top', 'middle', 'bottom', 'right']
+    // 顺序对应 data.regions 掩码 0x01..0x10 = IO1..IO5 = 右/左/上/中/下（实测）
+    var regionKeys = ['right', 'left', 'top', 'middle', 'bottom']
     var regions = this.data.regions
     regions.forEach(function (r, i) {
       r.name = i18n.t('common.regions.' + regionKeys[i])
diff --git a/miniprogram/pages/treatment-setup/treatment-setup.wxml b/miniprogram/pages/treatment-setup/treatment-setup.wxml
index a31a9a1..c672401 100644
--- a/miniprogram/pages/treatment-setup/treatment-setup.wxml
+++ b/miniprogram/pages/treatment-setup/treatment-setup.wxml
@@ -27,11 +27,11 @@
 
     <!-- 位置↔idx 对应新纵列布局：idx0=左(0x01) idx1=中上(0x02) idx2=中(0x04) idx3=中下(0x08) idx4=右(0x10) -->
     <view class="face-map">
-      <view class="face-region forehead {{regions[1].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="1">{{i18n.common.regions.top}}</view>
-      <view class="face-region left-cheek {{regions[0].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="0">{{i18n.common.regions.left}}</view>
-      <view class="face-region right-cheek {{regions[4].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="4">{{i18n.common.regions.right}}</view>
-      <view class="face-region nose {{regions[2].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="2">{{i18n.common.regions.middle}}</view>
-      <view class="face-region chin {{regions[3].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="3">{{i18n.common.regions.bottom}}</view>
+      <view class="face-region forehead {{regions[2].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="2">{{i18n.common.regions.top}}</view>
+      <view class="face-region left-cheek {{regions[1].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="1">{{i18n.common.regions.left}}</view>
+      <view class="face-region right-cheek {{regions[0].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="0">{{i18n.common.regions.right}}</view>
+      <view class="face-region nose {{regions[3].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="3">{{i18n.common.regions.middle}}</view>
+      <view class="face-region chin {{regions[4].checked ? 'active' : ''}} {{selectedMode === 0 ? 'disabled' : ''}}" bindtap="onToggleRegion" data-idx="4">{{i18n.common.regions.bottom}}</view>
     </view>
 
     <button class="btn-primary" bindtap="onStart" disabled="{{submitting}}" loading="{{submitting}}">
diff --git a/miniprogram/services/ble/protocol.js b/miniprogram/services/ble/protocol.js
index 829be9e..6c27b43 100644
--- a/miniprogram/services/ble/protocol.js
+++ b/miniprogram/services/ble/protocol.js
@@ -57,18 +57,18 @@ var TREAT_MODE = {
   SMART: 1
 }
 
-// 区域 = IO 纵列布局（果果 2026-07 定案）：左=IO1(0x01)，中上=IO2(0x02)，中=IO3(0x04)，
-// 中下=IO4(0x08)，右=IO5(0x10)。旧命名(左脸颊/额头/鼻部…)来自过时文档，与实物不符，已废弃。
+// 区域 = IO↔物理位置（果果 2026-07-28 真机实测）：右=IO1(0x01) 左=IO2(0x02) 上=IO3(0x04)
+// 中=IO4(0x08) 下=IO5(0x10)。此前口头给的"纵列左IO1/中上IO2…"实测不符，以本表为准。
 var REGION = {
-  LEFT: 0x01,
-  TOP: 0x02,
-  MIDDLE: 0x04,
-  BOTTOM: 0x08,
-  RIGHT: 0x10,
+  RIGHT: 0x01,
+  LEFT: 0x02,
+  TOP: 0x04,
+  MIDDLE: 0x08,
+  BOTTOM: 0x10,
   FULL_FACE: 0x1F
 }
 
-var REGION_NAMES = ['left', 'top', 'middle', 'bottom', 'right']
+var REGION_NAMES = ['right', 'left', 'top', 'middle', 'bottom']
 
 // FFE4 Byte17 高三位 = 扫描时光色指示（协议简述-添加扫描时光色.docx 2026-07）：
 // 001=红光 010=红外 011=紫外(蓝) 100=暖黄。注意与下发命令的 WAVELENGTH 编码
@@ -196,7 +196,9 @@ function buildVendorCommand(options) {
     b = clampByte(b)
     return isTreat && b > MAX_TREAT_BRIGHTNESS ? MAX_TREAT_BRIGHTNESS : b
   }
-  var ioMasks = [REGION.LEFT, REGION.TOP, REGION.MIDDLE, REGION.BOTTOM, REGION.RIGHT] // IO1..IO5
+  // IO1..IO5 物理槽位 = bit 升序（Byte n*6 对应 mask 1<<n）。直接用字面量，不依赖
+  // REGION 常量名——区域↔mask 语义调整时这里必须始终是 0x01,0x02,0x04,0x08,0x10。
+  var ioMasks = [0x01, 0x02, 0x04, 0x08, 0x10] // IO1=右 IO2=左 IO3=上 IO4=中 IO5=下
   var bytes = []
   var i, j
 
@@ -368,8 +370,8 @@ function parseException(payload) {
 function getRegionName(mask) {
   var names = []
   var bits = [
-    [0x01, '左区'], [0x02, '中上区'], [0x04, '中区'],
-    [0x08, '中下区'], [0x10, '右区']
+    [0x01, '右区'], [0x02, '左区'], [0x04, '上区'],
+    [0x08, '中区'], [0x10, '下区']
   ]
   for (var i = 0; i < bits.length; i++) {
     if (mask & bits[i][0]) names.push(bits[i][1])
diff --git a/miniprogram/services/diagnosis.js b/miniprogram/services/diagnosis.js
index d9b0fd5..dc3bd2f 100644
--- a/miniprogram/services/diagnosis.js
+++ b/miniprogram/services/diagnosis.js
@@ -9,7 +9,7 @@
 //   PD ADC 值越大 = 反射光越弱 = 皮肤吸收越多。故 NR = zone/avg − 1（吸收多→NR 高）。
 //   config.polarity = 'direct' 可切回"值大=光强"的旧假设（备用开关，标定时救急）。
 //
-// PD↔区域映射已由固件确认（2026-07-28，果果转达）：左=PD1 中上=PD2 中=PD3/6/7 中下=PD4 右=PD5。
+// PD↔区域映射（果果转达）：左=PD1 上=PD2 中=PD3/6/7 下=PD4 右=PD5（方位与实测 IO 表一致）。
 // 仍待定：3 路 PD 区的聚合——文档 7.1 自相矛盾(几何平均 vs 取最小)，按更细的几何平均+MAD剔异常实现。
 // 所有阈值/亮度/映射均可被服务端 diagnosis_config 覆盖，标定后免发版调参。
 
@@ -20,13 +20,13 @@ var WAVE_PROBLEM = { red: 'aging', uv: 'acne', yellow: 'pigment', ir: 'deep' }
 // 波长 key -> 下发命令编码。
 var WAVE_KEY_CODE = { red: 2, uv: 3, yellow: 4, ir: 1 }
 
-// 5 区 = IO 纵列布局（果果定案）：左=IO1 中上=IO2 中=IO3 中下=IO4 右=IO5。
+// 5 区 = IO↔物理位置（果果 2026-07-28 实测）：右=IO1(0x01) 左=IO2(0x02) 上=IO3(0x04) 中=IO4(0x08) 下=IO5(0x10)。
 var REGION_DEFS = [
-  { key: 'left', mask: 0x01 },
-  { key: 'top', mask: 0x02 },
-  { key: 'middle', mask: 0x04 },
-  { key: 'bottom', mask: 0x08 },
-  { key: 'right', mask: 0x10 }
+  { key: 'right', mask: 0x01 },
+  { key: 'left', mask: 0x02 },
+  { key: 'top', mask: 0x04 },
+  { key: 'middle', mask: 0x08 },
+  { key: 'bottom', mask: 0x10 }
 ]
 
 var DEFAULT_CONFIG = {
@@ -35,8 +35,8 @@ var DEFAULT_CONFIG = {
   th: 0.10,                      // 判定阈值(文档建议初始值，需临床标定)
   severity: { low: 0.05, mid: 0.15, high: 0.30 }, // 轻/中/重分级，仅报告展示
   brightness: 204,               // 治疗强度 80%(果果定案)，仅用于推荐方案下发
-  // PD↔区域映射（固件 2026-07-28 确认）：左=PD1 中上=PD2 中=PD3/6/7 中下=PD4 右=PD5（下标 0 基）。
-  pd_region_map: { left: [0], top: [1], middle: [2, 5, 6], bottom: [3], right: [4] },
+  // PD↔区域映射（果果 2026-07-28 确认）：左=PD1 上=PD2 中=PD3/6/7 下=PD4 右=PD5（下标 0 基）。
+  pd_region_map: { right: [4], left: [0], top: [1], middle: [2, 5, 6], bottom: [3] },
   problem_wavelength: PROBLEM_WAVELENGTH
 }
 
@@ -217,7 +217,7 @@ function mockReport() {
     scanned_at: 0,
     region_mask: 0x1F,
     waves: {
-      // 下标: 0=左PD1 1=中上PD2 2=中PD3 3=中下PD4 4=右PD5 5=中PD6 6=中PD7
+      // 下标: 0=PD1左 1=PD2上 2=PD3中 3=PD4下 4=PD5右 5=PD6中 6=PD7中
       red:    [1350, 920, 900, 910, 905, 890, 940],
       uv:     [2050, 2020, 2600, 2010, 2080, 2560, 2620],
       yellow: [1500, 1520, 1490, 1505, 1495, 1530, 1510],