Samsung SCH-u420 - Manual (Page 31)

Section 2: Understanding Your Phone 31
Your Phone’s Modes
Section 2
ⅷ Example: “Message saved in drafts”
• Information
ⅷ Example: “New Message”
• Error
ⅷ Example: “System Error!”
• Warning
ⅷ Example: “Battery Low,” “Memory Full!”
Backlights
Backlights illuminate the internal and external displays
and the keypad. When you press any key or open the
phone, the backlights come on. They go off when no
keys are pressed within a period of time set in the
Backlight
menu.
Note: During a phone call, the display backlights dim and turn off after ten
seconds to conserve battery power, regardless of the Backlight setting.
See “Backlight” on page 180 for more information.
Your Phone’s Modes
Keypad Lock Mode
When you close the slide on your u420 phone, it enters
Keypad Lock mode. This prevents accidental activation
of phone functions or features. While your phone is in
Keypad Lock mode and with no incoming call or
message, only the Volume keys and the Left Soft key
function.