How Do I Use Key Guard Or Key Lock On My SGH-T459 (Gravity) Phone?

Follow the steps below to use key lock.

Use Key Lock

To use key lock follow the steps below:

  1. From standby press the Menu key
  2. Select Settings (9)
  3. Select Phone Settings (3)
  4. Select Auto Key Lock (4)
  5. Highlight On and press the Save key

The Auto Key Lock feature works in accordance with the backlight duration settings. 

Note: To bypass the auto ley lock and backlight duration settings and immediately lock the keypad, simply press and hold the [*] key while in standby mode. To unlock the keypad, press the left soft key and then the right soft key.

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