Asus V55 - Manual (Page 74)

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Menu display schemes
You can also choose between two different menu display schemes. The
circular icon scheme displays round icons in a spherical orbit, while the grid
icon scheme displays icons in a grid. Set schemes in
Settings>Handset>Scheme.
Language
Set the language for the main display and menus, as well as for language
input in Settings>Handset>Language. When set to Automatic, the phone
adjusts to the main language of the regional service provider.
Security
SIM card lock
To protect your phone from unauthorized use, you can enable PIN
(Personal Identification Number) protection. Blocking access to the SIM
card prevents others from accessing information on the phone or making
calls. When you turn on the phone, or when the phone is locked, you must
enter the PIN before the phone can be used.
To set Security and PIN settings, go to
Settings>Security Setting>PIN
codes. After enabling the PIN protection option, you may set the PIN of your
choice under Change PIN.
If you enter the wrong PIN code three times in a row, the SIM card is
disabled. You must then contact your service provider for a PIN unblocking
key (PUK) in order to enable the SIM card.