update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

en/device-dev/subsystems/Readme-EN.md

@@ -65,8 +65,8 @@
   - [Development on IPC Authentication](subsys-security-communicationverify.md)
   - [Development on Device Security Level Management](subsys-security-devicesecuritylevel.md)
   - [Development on HUKS](subsys-security-huks-guide.md)
-  - [Application Privilege Configuration Guide](subsys-app-privilege-config-guide.md)
-  - [Preset Application Configuration Guide](subsys-preinstall-app-config-guide.md)
+  - [Application Privilege Configuration](subsys-app-privilege-config-guide.md)
+  - [Configuration of Pre-installed Applications](subsys-preinstall-app-config-guide.md)
 - Startup
   - [Startup](subsys-boot-overview.md)
   - init Module

en/device-dev/subsystems/subsys-app-privilege-config-guide.md

-# Application Privilege Configuration Guide
+# Application Privilege Configuration
 
 Application privileges are high-level capabilities of an application, for example, restricting an application from being uninstalled or restricting application data from being deleted.
 

en/device-dev/subsystems/subsys-preinstall-app-config-guide.md

-# Preset Application Configuration Guide
+# Configuration and Installation of Pre-installed Applications
 
-OpenHarmony supports differentiated configuration of preset applications on different devices.
+Pre-installed applications are applications that are natively installed on a device from factory setup. OpenHarmony supports differentiated configuration of pr-installed applications on different devices.
 
-In addition, OpenHarmony provides **GetCfgDirList** for your application to obtain the preset directories, such as **system**, **chipset**, **sys_prod**, and **chip_prod**, in ascending order of priority. For example, the priority of **chip_prod** is higher than that of **system**.
+## Configuring Pre-installed Applications
 
-## Configuring the Preset Applications to Be Installed
+1. Before the configuration, run the following command to query the directories for pre-installed applications supported by the system:
    
-### Procedure
+   ```
+   hdc shell param get const.cust.config_dir_layer
+   ```
    
-1. Add the application name in the preset directory as the application directory.
-2. Preset the application in the application directory, for example, **/system/app/Hiworld/entry.hap**.
-3. Add the application directory to [install_list.json](https://gitee.com/openharmony/vendor_hihope/blob/master/rk3568/preinstall-config/install_list.json) and configure **removable** as required.
+   The query result includes **system**, **chipset**, **sys_prod**, **chip_prod**, and more. The directories are listed in ascending order of priority. For example, **chip_prod** has higher priority than **system**. This document uses **/system/etc/app/** as an example.
 
-### Example
+2. Configure the HAP path on the device in the **install_list.json** file.
+
+```
+hdc shell mount -o rw,remount /
+hdc file recv /system/etc/app/install_list.json .
+```
+
+3. Configure **install_list**.
 
 ```
 {
     "install_list" : [
         {
-            "app_dir" : "/system/app/Hiworld",
-            "removable": false // The application cannot be uninstalled.
+            "app_dir":"system/app/xxxx/yyyy", // HAP path on the device. If the directory does not exist, create it and push HAP to this directory.
+            "removable":true // Whether the application can be uninstalled. The value true means the application can be uninstalled; the value false means the opposite.
         }
     ]
 }
 ```
 
-## Configuring the Preset Applications Not to Be Installed
+4. Transfer the **install_list.json** file to the device, and restart the device for the modification to take effect.
+
+```
+    hdc shell mount -o rw,remount /
+    hdc file send install_list.json /system/etc/app/install_list.json
+    hdc shell reboot
+```
+
+## Updating Pre-installed Applications
+
+After the pre-installed applications are updated, use either of the following methods to reinstall them:
+
+- Method 1: Clear **/data** and restart the device. The applications will be automatically installed.
+
+```
+    hdc shell mount -o rw,remount / 
+    hdc shell rm /data/* -rf
+    hdc shell sync
+    hdc shell /system/bin/udevadm trigger
+    hdc shell reboot
+```
+- Method 2: Run the following command to restart the device. The applications will be installed.
+
+    If an application has been installed, the application version No. ([versionCode](../../application-dev/quick-start/app-configuration-file.md) configured in **app.json5** for the stage model or [code](../../application-dev/quick-start/app-structure.md#internal-structure-of-the-version-atttribute) in the configuration file for the FA model) sent to the **/system/app/** directory must be later than the version number of the application installed.
+
+```
+    hdc shell mount -o rw,remount /
+    hdc shell param set persist.bms.test-upgrade true
+    hdc shell reboot
+```
+
+# Configuring Applications Not Installed
 
-The configuration priority of [**uninstall_list.json**](https://gitee.com/openharmony/vendor_hihope/blob/master/rk3568/preinstall-config/uninstall_list.json) is higher than that of **install_list.json**. The applications added to **uninstall_list.json** will not be installed.
+The [**uninstall_list.json**](https://gitee.com/openharmony/vendor_hihope/blob/master/rk3568/preinstall-config/uninstall_list.json) has higher configuration priority than **install_list.json**. The applications added to **uninstall_list.json** will not be installed.
 
-### Example 1:
+## Example 1
 
 ```
 /system/etc/app/uninstall_list.json
@@ -39,7 +77,7 @@ The configuration priority of [**uninstall_list.json**](https://gitee.com/openha
 }
 ```
 
-### Example 2:
+## Example 2
 
 ```
 /system/etc/app/uninstall_list.json