From 45fd38f0fcee9fc14c4e7304eb07b57a72ae7eff Mon Sep 17 00:00:00 2001
From: shawn_he <shawn.he@huawei.com>
Date: Wed, 8 Mar 2023 13:54:40 +0800
Subject: [PATCH] update doc

Signed-off-by: shawn_he <shawn.he@huawei.com>
---
 en/application-dev/dfx/apprecovery-guidelines.md       |  2 +-
 en/application-dev/dfx/errormanager-guidelines.md      | 10 +++++-----
 .../reference/apis/js-apis-system-configuration.md     |  1 -
 3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/en/application-dev/dfx/apprecovery-guidelines.md b/en/application-dev/dfx/apprecovery-guidelines.md
index b2992e7c99..bae804c558 100644
--- a/en/application-dev/dfx/apprecovery-guidelines.md
+++ b/en/application-dev/dfx/apprecovery-guidelines.md
@@ -134,7 +134,7 @@ After the callback triggers **appRecovery.saveAppState()**, **onSaveState(state,
 
 - Restore data.
 
-After the callback triggers **appRecovery.restartApp()**, the application is restarted. After the restart, **onSaveState(state, wantParams)** of **MainAbility** is called, and the saved data is in **parameters** of **want**.
+After the callback triggers **appRecovery.restartApp()**, the application is restarted. After the restart, **onCreate(want, launchParam)** of **MainAbility** is called, and the saved data is in **parameters** of **want**.
 
 ```ts
 storage: LocalStorage
diff --git a/en/application-dev/dfx/errormanager-guidelines.md b/en/application-dev/dfx/errormanager-guidelines.md
index 631445b862..a43d7c1fce 100644
--- a/en/application-dev/dfx/errormanager-guidelines.md
+++ b/en/application-dev/dfx/errormanager-guidelines.md
@@ -37,10 +37,10 @@ When an asynchronous callback is used, the return value can be processed directl
 ## Development Example
 ```ts
 import Ability from '@ohos.application.Ability'
-import errorManager from '@ohos.application.errorManager'
+import errorManager from '@ohos.app.ability.errorManager';
 
-var registerId = -1;
-var callback = {
+let registerId = -1;
+let callback = {
     onUnhandledException: function (errMsg) {
         console.log(errMsg);
     }
@@ -48,13 +48,13 @@ var callback = {
 export default class MainAbility extends Ability {
     onCreate(want, launchParam) {
         console.log("[Demo] MainAbility onCreate")
-        registerId = errorManager.registerErrorObserver(callback);
+        registerId = errorManager.on("error", callback);
         globalThis.abilityWant = want;
     }
 
     onDestroy() {
         console.log("[Demo] MainAbility onDestroy")
-        errorManager.unregisterErrorObserver(registerId, (result) => {
+        errorManager.off("error", registerId, (result) => {
             console.log("[Demo] result " + result.code + ";" + result.message)
         });
     }
diff --git a/en/application-dev/reference/apis/js-apis-system-configuration.md b/en/application-dev/reference/apis/js-apis-system-configuration.md
index 934ceb0204..ddc277722b 100644
--- a/en/application-dev/reference/apis/js-apis-system-configuration.md
+++ b/en/application-dev/reference/apis/js-apis-system-configuration.md
@@ -50,4 +50,3 @@ Defines attributes of the current locale.
 | language | string | Yes   | No   | Language, for example, **zh**.|
 | countryOrRegion | string | Yes   | No   | Country or region, for example, **CN** or **US**.|
 | dir | string | Yes   | No   | Text layout direction. The value can be:<br>- **ltr**: from left to right<br>- **rtl**: from right to left|
-| unicodeSetting<sup>5+</sup> | string | Yes   | No   | Unicode language key set determined by the locale. If current locale does not have a specific key set, an empty set is returned.<br>For example, **{"nu":"arab"}** indicates that current locale uses Arabic numerals.|
-- 
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