Daewoo International DTD-1200 Manual Del Usuario página 42

12.3 Changing the PIN code (system PIN code)
Certain functions are only available if you know the PIN code of the base.
The PIN code has 4 digits. The default PIN code setting is 0000 . If you
would like to change the PIN code and set your own secret code, do the
following:
1. Press
press
2. Use
3. Enter the OLD pin and press
press
4. Press the NEW pin again and press
it will display PIN CHANGED .
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key. Use
key.
or keys to scroll to SYSTEM PIN and press
.
key.
or keys to scroll to BASE and
key. Enter the NEW pin and
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key. If it is successful,