auto power-on change

LattePandaTeam · Nov 28, 2024 · a1ee455 · a1ee455
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diff --git a/docs/content/3rd_delta_edition/bios_Auto_power_on.md b/docs/content/3rd_delta_edition/bios_Auto_power_on.md
@@ -2,21 +2,45 @@
 
 
 ## Auto Power-on
-To enable LattePanda to power on without the need to press the physical power button, kindly adjust the BIOS settings as follows:
-
-**Path: BIOS Setup --> Advanced --> Power Management --> AcPowerLoss**
-(Navigate to the location and set the **`AcPowerLoss`** option to **`Power On`**.)
-
-![](../../assets/images/LattePanda 3 Delta/AcPowerLoss_3Delta.webp){width="600" }
-
-Please note that the default setting is **`Power Off`**.
-
-!!! Warning
-    - When the **RTC battery's charge** is depleted, the Auto Power-On function will not work. Hence, it is crucial to ensure that the RTC battery is adequately charged to maintain its functionality. 
+The Auto Power-On feature allows the LattePanda to start up automatically without pressing the physical power button. The setup process varies slightly between the old and new versions of the LattePanda 3 Delta. You can identify your product version by checking the silk screen on the board pins.
+
+### Identifying Your Version
+- **New Version:** There are the AUTO and SW pins as shown below.
+- **Old Version:** There are the NC and NC pins as shown below.
+![](new and old pinout){width="600"}
+
+=== "For the New Version"
+
+    !!! note ""
+        #### Step 1: Short-Circuiting the Pins
+        Short-circuit the AUTO and SW pins on the board.
+        ![](Short-Circuit Diagram){width="600"}
+        
+        #### Step 2: BIOS Configuration
+        1. Power on the LattePanda and enter the BIOS.
+        2. Navigate through the following path:
+            **Path: BIOS Setup → Advanced → Power Management → AcPowerLoss**
+        3. Set the AcPowerLoss option to **`Power On`**.
+        ![](../../assets/images/LattePanda 3 Delta/AcPowerLoss_3Delta.webp){width="600" }
+
+        <span style="color: rgba(225, 103, 13);">The new version of LattePanda 3 Delta natively supports the Auto Power-On feature, which is not affected by the RTC battery charge level, ensuring stable support for Auto Power-On.</span>
+
+
+=== "For the Old Version"
+
+    !!! note ""
+        #### BIOS Configuration
+        1. Power on the LattePanda and enter the BIOS.
+        2. Navigate through the following path:
+            **Path: BIOS Setup → Advanced → Power Management → AcPowerLoss**
+        3. Set the AcPowerLoss option to **`Power On`**.
+        ![](../../assets/images/LattePanda 3 Delta/AcPowerLoss_3Delta.webp){width="600" }
+        
+        !!! Warning
+        - When the **RTC battery's charge** is depleted, the Auto Power-On function will not work. Hence, it is crucial to ensure that the RTC battery is adequately charged to maintain its functionality. 
         - The LattePanda 3 Delta comes equipped with an onboard CR927 RTC battery, with a voltage of 3.0V, capable of maintaining power for  <span style="color: rgba(225, 103, 13);">**around 9~12 months**</span>.You could refer to [**External RTC Power Pin Chapter**](io_playability_Internal.md#external-rtc-power-pin) to connect an external large-capacity RTC battery.
         - Please disable the **Deep Sleep EUP Support** feature to ensure smooth operation of the Auto Power-On function.
 
-If your project needs innate support for auto power-on function on LattePanda 3 Delta, impervious to the influence of RTC battery power and BIOS configurations, <span style="color: rgba(225, 103, 13);">kindly reach out to [**LattePanda Business Team**](mailto:[email protected]) for personalized consultation</span>. 
 
 
 [**:simple-discord: Join our Discord**](https://discord.gg/k6YPYQgmHt){ .md-button .md-button--primary }
diff --git a/docs/content/3rd_delta_edition/io_playability_Internal.md b/docs/content/3rd_delta_edition/io_playability_Internal.md
@@ -88,14 +88,19 @@ When the headphone is inserted, the audio output automatically switches to the h
 
 ### :material-battery-clock: External RTC Power Pin
 
-The LattePanda 3 Delta comes equipped with an onboard CR927 RTC battery, with a voltage of 3.0V, capable of maintaining power for **around 9~12 months**. 
+The LattePanda 3 Delta comes equipped with an onboard CR927 RTC battery, with a voltage of 3.0V, capable of maintaining power for **around 9~12 months**.
 
-If your project requires the auto power on feature, or demands a longer RTC maintenance time, please use a battery with a larger capacity, connecting it to the external RTC power pin in the pin header. Since the external RTC power pin in the pin header is directly connected to the onboard RTC battery, remove the onboard CR927 battery when using an externally connected larger capacity battery. 
+If you require a longer battery life for the RTC (Real-Time Clock), you can connect a battery with a larger capacity to the external RTC power pin in the pin header. Since the external RTC power pin in the pin header is directly connected to the onboard RTC battery, **remove the onboard CR927 battery** when using an externally battery.
 
 Larger capacity batteries include the CR2032, among others. The power voltage should not exceed 3.3V.
 
 ![](../../assets/images/LattePanda 3 Delta/ExteranlRTCPowerPin_3Delta.webp){width="300"}
 
+!!! note ""
+    #### Note for Old Version Users
+    If you are using the old version of the LattePanda 3 Delta, be aware that the status of the RTC battery will affect the Auto Power-On function. For more details, refer to the section on the [**Auto Power-On Function**](../3rd_delta_edition/bios_Auto_power_on.md) in the BIOS Setup.
+
+
 ### GPIO Pin
 
 Lattepanda 3 Delta has an ATmega32u4 chip on board, and the built-in firmware is compatible with LattePanda Leonardo. It is connected to the processor through the USB 2.0 lane, and is mapped to a COM port device in the operating system, named LattePanda Leonardo.