Справочник Пользователя для Samsung Metro PCS SCH-A610

Avoid touching the antenna while the phone is powered up. 
Contact with the antenna affects the quality of your calls and 
may cause the phone to operate at a higher power level 
than necessary.

You can choose the amount of time that the display and 
backlight remain illuminated after a period of inactivity. Keep 
in mind that increasing these settings reduces battery life.

Folder Open enables the keypad or display backlight to 
remain on as long as the folder is open.

In standby mode, press the left soft key (

) 

.

Press ,  ,   

for 

. The following 

backlight options appear in the display.

Use the navigation key to highlight 

 or 

, then 

press .

Use the navigation key to highlight the amount of time 
that you wish the keypad or display to remain illuminated 
after a period of inactivity, then press 

.