Motorola A780 - Manual (Page 153)

153 Phone Setup
Auto Keylock
You can set your phone keypad to lock automatically when
the flip is closed and no activity is detected for a specified
time, Locking the keypad can help prevent accidental
keypresses (for example, when carrying your phone in a
purse or pocket).
1 Tap T Setup in the application launcher screen.
2 Tap Auto Keylock to set the keylock time.
To unlock a locked keypad, press
C *.
Touchscreen Calibration
You should re-calibrate the touchscreen if the phone begins
to respond incorrectly to your stylus input on the touchscreen
display.
1 Tap T Setup in the application launcher screen, then tap
Screen calibration.
2 Follow the on-screen instructions and tap the center of
the symbol with your stylus as instructed, until the phone
indicates that the touchscreen display is properly
calibrated, then tap OK.