diff --git a/Readme-zh_CN.md b/Readme-zh_CN.md
index eb0c5ad..3e67369 100644
--- a/Readme-zh_CN.md
+++ b/Readme-zh_CN.md
@@ -35,17 +35,15 @@
 
 ## FAQ
 
-### 设备上有账号
+### 设备上已有账号
 
 ```text
 java.lang.IllegalStateException: Not allowed to set the device owner because there are already some accounts on the device
 ```
 
-解决办法：
-- 冻结持有这些账号的app。
-- 删除这些账号。
+解决办法：冻结持有这些账号的app，或删除这些账号。
 
-### 设备上有多个用户
+### 设备上已有多个用户
 
 ```text
 java.lang.IllegalStateException: Not allowed to set the device owner because there are already several users on the device
@@ -86,7 +84,7 @@ user limit reached
 三星限制了多用户功能，暂无解决办法。
 
 
-### 创建工作资料
+### 创建工作资料/用户
 
 在大部分设备上，设置device owner后不能创建工作资料，因为系统在设置device owner时会添加`no_add_managed_profile`等用户限制。
 Device owner不能修改系统设置的用户限制，但如果你有root权限，你可以在adb shell中执行以下命令以关闭这个限制。
@@ -98,6 +96,9 @@ pm set-user-restriction no_add_private_profile 0
 pm set-user-restriction no_add_clone_profile 0
 ```
 
+一些系统在设置了device owner后不允许在安卓设置中创建用户，你可以在OwnDroid中创建用户。
+如果你有root，你也可以在adb shell中运行以上命令以解除限制。
+
 ## API
 
 OwnDroid提供了一个基于Intent的API。你需要在设置中设置密钥并启用API。括号中的数字是最小的安卓版本。
diff --git a/Readme.md b/Readme.md
index 9a70458..122a374 100644
--- a/Readme.md
+++ b/Readme.md
@@ -41,9 +41,7 @@ Use Android's DevicePolicyManager API to manage your device.
 java.lang.IllegalStateException: Not allowed to set the device owner because there are already some accounts on the device
 ```
 
-Solutions:
-- Freeze apps who hold those accounts.
-- Delete these accounts.
+Solutions: freeze the accounts' holder apps, or delete those accounts.
 
 ### Already several users on the device
 
@@ -59,7 +57,7 @@ Solution: Delete secondary users, including work profile, private space and app
 java.lang.IllegalStateException: Trying to set the device owner (com.bintianqi.owndroid/.Receiver), but device owner (xxx) is already set.
 ```
 
-Only 1 device owner can exist on a device. Please deactivate the existing device owner first.
+Only one device owner can exist on a device. Please deactivate the existing device owner first.
 
 ### MIUI & HyperOS
 
@@ -87,7 +85,7 @@ user limit reached
 
 Samsung restricts Android's multiple users feature. There is currently no solution.
 
-### Create work profile
+### Create work profile / user
 
 On most devices, creating work profile is not allowed by the system when the device owner exist.
 Because the system add `no_add_managed_profile` user restriction when a device owner is set.
@@ -100,6 +98,9 @@ pm set-user-restriction no_add_private_profile 0
 pm set-user-restriction no_add_clone_profile 0
 ```
 
+Some systems disable the feature of adding users in Android settings once a device owner is set.
+You have to create users in OwnDroid. Or if you have root, run the above command in adb shell to remove that restriction.
+
 ## API
 
 OwnDroid provides an Intent-based API. You need to set the API key in settings and enable the API. The numbers in brackets represent the minimum Android version required.
diff --git a/app/src/main/java/com/bintianqi/owndroid/feature/system/SystemOptionsModel.kt b/app/src/main/java/com/bintianqi/owndroid/feature/system/SystemOptionsModel.kt
index 345a787..99120cd 100644
--- a/app/src/main/java/com/bintianqi/owndroid/feature/system/SystemOptionsModel.kt
+++ b/app/src/main/java/com/bintianqi/owndroid/feature/system/SystemOptionsModel.kt
@@ -22,7 +22,7 @@ data class SystemOptionsStatus(
 class GlobalSetting(val icon: Int, val name: Int, val setting: String) // also for secure settings
 
 val globalSettings = listOf(
-    GlobalSetting(R.drawable.cell_tower_fill0, R.string.data_roaming, Settings.Global.DATA_ROAMING),
+    //GlobalSetting(R.drawable.cell_tower_fill0, R.string.data_roaming, Settings.Global.DATA_ROAMING),
     GlobalSetting(R.drawable.adb_fill0, R.string.enable_adb, Settings.Global.ADB_ENABLED),
     GlobalSetting(R.drawable.usb_fill0, R.string.enable_usb_mass_storage,
         Settings.Global.USB_MASS_STORAGE_ENABLED),