tailieunhanh - BlackBerry Curve 9300 Smartphone Version: 5.0 User Guide phần 9

Trên màn hình chủ hoặc trong một thư mục, nhấn vào biểu tượng Options. Nhấp vào Screen / Keyboard. Thay đổi các lĩnh vực Công nghệ đèn nền tự động Dim Off. Nhấn phím Menu. Nhấp vào hồ sơ VPN chứa các thông tin mà bạn yêu cầu để đăng nhập vào một VPN. | User Guide Security Security Security basics About the device password If you type your BlackBerry device password incorrectly you might be prompted to type blackberry before you can continue. When you try to type your password again the characters that you type appear on the screen. If you exceed the number of allowed password attempts your device deletes all your device data for security reasons. Set a device password 1. On the Home screen or in a folder click the Options icon. 2. Click Password. 3. Set the Password field to Enabled. 4. Click Set Password. 5. Type a password. 6. Press the Menu key. 7. Click Save. To turn off the BlackBerry device password set the Password field to Disabled. Change the device password 1. On the Home screen or in a folder click the Options icon. 2. Click Password. 3. Click Change Password. Lock your device To perform this task you must have set a password for your BlackBerry device. On the Home screen or in a folder click the Password Lock icon. To unlock your device type your device password. Press the Enter key. Lock your device when you insert it in the holster 1. On the Home screen or in a folder click the Options icon. 2. Click Password. 256 User Guide Security 3. Change the Lock Handheld Upon Holstering field to Yes. 4. Press the Menu key. 5. Click Save. Lock the keyboard If your email account uses a BlackBerry Enterprise Server depending on the options that your administrator sets you might not be able to perform this task. For more information contact your administrator. Press and hold the Play Pause Mute key on the top of your device. Set a limit for device password attempts 1. On the Home screen or in a folder click the Options icon. 2. Click Password. 3. Set the Number of Password Attempts field. 4. Press the Menu key. 5. Click Save. Delete device data third-party applications or media card files Before you delete your BlackBerry device data or media card files consider backing up these items so that you have a copy on .