Settings
85
• Touch 
Optimum performance
 to have your phone work in its best 
performance mode without any power saving operations.
Setting the date and time
By default, your phone relies on the network-based date and time. You can also manually 
set the date and time.
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
SYSTEM
, touch 
Date & time
.
3. From the settings screen, you can:
• Clear the 
Automatic date & time
 check box to stop your phone from 
automatically obtaining the network date and time.
• Clear the 
Automatic time zone
 check box to stop your phone from 
automatically obtaining the network time zone.
• Touch 
Set date
 and flick up and down to set your phone's date.
• Touch 
Set time
 and flick up and down to set your phone's time.
• Touch 
Select time zone
 and select the time zone from the list. Scroll up or 
down to view more time zones.
• Select or clear the 
Use 24-hour format
 check box to switch between the 12-
hour and 24-hour formats.
• Touch 
Select date format
 to select how you wish the date to be displayed.
Changing the system language
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
PERSONAL
, touch 
Language & input
.
3. Touch 
Language
.
4. From the list, choose a language.
Modifying location service settings
You can modify your phone's location service settings for more convenient positioning and 
navigation services.