Sprint Nextel J120 - Manual (Page 48)

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47
Brightness
You can adjust the brightness of the screen.
To set the brightness
1 From standby select Menu
}
Settings
}
Advanced
}
Brightness .
2 Press or to change the brightness.
3 Select Save .
Locks
Automatic keylock
Automatic keylock in standby means the keypad is locked
a short while after you last press a key.
To turn the automatic keylock on
1 From standby select Menu
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Settings
}
Advanced
}
Auto keylock .
2 Select On .
SIM card lock
The SIM card lock protects your subscription, but not your
phone itself, from unauthorized use. If you change SIM
cards, the phone still works with the new SIM card.
Most SIM cards are locked at the time of purchase. If the
SIM card lock is on, you have to enter a PIN (Personal
Identity Number) every time you turn on your phone.
If you enter your PIN incorrectly three times in a row, the
SIM card is blocked. This is indicated by the message
PIN blocked. Enter PUK provided by your operator . To
unblock it, you need to enter your PUK (Personal
Unblocking Key). Your PIN and PUK are supplied by your