diff --git a/docs/en/core/core2.md b/docs/en/core/core2.md
index f9b34eb5..7e17dcc0 100644
--- a/docs/en/core/core2.md
+++ b/docs/en/core/core2.md
@@ -33,6 +33,18 @@ The development platform and programming language supported by M5Stack Core2: Ar
 Restart: Click the RST button at the bottom
 
 
+?>Core2 is adopting AXP192 as power chip. Please initialize the 'mbus' mode per the powering method, as below::
+
+```clike
+
+//mbus_mode_t:
+//kMBusModeOutput：Powered by USB or battery
+//kMBusModeInput: Powered by external 5V or DC jack
+
+M5.begin(bool LCDEnable = true, bool SDEnable = true, bool SerialEnable = true, bool I2CEnable = false, mbus_mode_t mode = kMBusModeOutput);
+
+```
+
 >**To stack M5Core2 with M5 modules, you need to remove/omit the battery bottom of Core2; If you need to keep I2S Mic, IMU and Battery functions, a [M5GO Bottom2](en/base/m5go_bottom2) is needed.**
 
 
diff --git a/docs/en/core/core2_for_aws.md b/docs/en/core/core2_for_aws.md
index 8037e55a..27f114c3 100644
--- a/docs/en/core/core2_for_aws.md
+++ b/docs/en/core/core2_for_aws.md
@@ -24,6 +24,19 @@ The main unit is equipped with a 2.0-inch capacitive touch screen that provides
 
 **The M5GO Bottom2 for AWS adds additional features and security for IoT applications. The MPU6886 provides 6-axis internal IMU and temperature, the SPM1423 digital microphone captures audio for recording or creating voice applications, 10 individually programmable RGB LEDs via SK6812 to create customized and animated light effects, a 500mAh lithium-ion battery provides power on the go, the onboard Microchip ATECC608 Trust&GO crypto-authentication chip is pre-provisioned with secure keys to simplify connectivity to AWS and accelerate cryptographic computation.** 
 
+
+?>Core2 For AWS is adopting AXP192 as power chip. Please initialize the 'mbus' mode per the powering method, as below::
+
+```clike
+
+//mbus_mode_t:
+//kMBusModeOutput：Powered by USB or battery
+//kMBusModeInput: Powered by external 5V or DC jack
+
+M5.begin(bool LCDEnable = true, bool SDEnable = true, bool SerialEnable = true, bool I2CEnable = false, mbus_mode_t mode = kMBusModeOutput);
+
+```
+
 **Operations:**
 
 * Power on: One click the power button on the left
diff --git a/docs/zh_CN/core/core2.md b/docs/zh_CN/core/core2.md
index dc5bee91..8e68e257 100644
--- a/docs/zh_CN/core/core2.md
+++ b/docs/zh_CN/core/core2.md
@@ -16,6 +16,18 @@
 **M5Core2** 是M5Stack开发套件系列中第二代主机，在原有一代主机基础上对功能进一步加强，硬件功能更加齐全。主控ESP32型号为D0WDQ6-V3，具有两个可以单独控制的 Xtensa® 32-bit LX6 处理器，主频高达240Mhz，支持WiFi与蓝牙功能，板载16MB Flash与8MB PSRAM，可通过TYPE-C接口下载程序，强劲的配置满足复杂应用的资源开销。正面搭载一块2.0寸一体化电容式触摸屏，为用户带来更流畅的人机交互体验。机身内置震动马达，可提供触觉回馈和震动提醒功能。内建的RTC模块可提供精准计时功能。电源部分搭载AXP192电源管理芯片可有效控制机身功耗，内置绿色电源指示灯，配备390mAh电池，续航时间更持久。同时机身内配备了TF-card(microSD)卡槽与扬声器，为了保证获得更高质量的声音效果，采用I2S数字音频接口的功放芯片，能有效防止信号失真。在机身的左侧和底部配有独立的电源按键与重启(RST)按键，屏幕正面的3个圆点属于触摸屏的一部分，可通过编写程序设置热区映射为3个虚拟按键。机身背部有一块扩展小板，板上带有6轴IMU传感器与麦克风。
 M5Stack Core2支持的开发平台和程序语言：Arduino，[UIFlow](http://flow.m5stack.com) (采用Blockly ，MicroPython语言) 无论你的开发和编程能力处在何种水平，M5Stack 都将协助你，逐步的将想法变为现实。
 
+?>Core2采用的电源管理芯片为AXP192，使用时，请根据电源输入方式，在程序上进行初始化，详情如下:
+
+```clike
+
+//mbus_mode_t:
+//kMBusModeOutput：使用USB或电池供电
+//kMBusModeInput: 使用外部供电5V,或DC接口
+
+M5.begin(bool LCDEnable = true, bool SDEnable = true, bool SerialEnable = true, bool I2CEnable = false, mbus_mode_t mode = kMBusModeOutput);
+
+```
+
 **开关机操作：**
 
 * 开机：单击左侧电源键
diff --git a/docs/zh_CN/core/core2_for_aws.md b/docs/zh_CN/core/core2_for_aws.md
index 24f0504e..04a5e32d 100644
--- a/docs/zh_CN/core/core2_for_aws.md
+++ b/docs/zh_CN/core/core2_for_aws.md
@@ -32,6 +32,17 @@
 
 * 复位: 单击底侧RST按键
 
+?>Core2 For AWS采用的电源管理芯片为AXP192，使用时，请根据电源输入方式，在程序上进行初始化，详情如下:
+
+```clike
+
+//mbus_mode_t:
+//kMBusModeOutput：使用USB或电池供电
+//kMBusModeInput: 使用外部供电5V,或DC接口
+
+M5.begin(bool LCDEnable = true, bool SDEnable = true, bool SerialEnable = true, bool I2CEnable = false, mbus_mode_t mode = kMBusModeOutput);
+
+```
 
 ## 产品特性
 
diff --git a/docs/zh_CN/mpy/advanced.md b/docs/zh_CN/mpy/advanced.md
index faf7c548..631a4899 100644
--- a/docs/zh_CN/mpy/advanced.md
+++ b/docs/zh_CN/mpy/advanced.md
@@ -9,8 +9,6 @@ import wifiCfg
 //自动连接已经保存的WiFi
 wifiCfg.autoConnect(lcdShow=True)
 
-
-
 ```
 
 # M5mqtt