Samsung SCH-I830MSASPR - Manual (Page 53)

Section 2B: Controlling Your Phone’s Settings 45
Yo
ur Phone’
s Settings
3. Tap Lock. Tap your password on the keypad abd tap .
If you enter the correct password, you’re returned to the
Password screen.
4. Tap the box to the left of “Prompt if device unused for.”
5. Tap , and then tap Yes to confirm.