5624 Wireless Handset User Guide
Deactivate the Phone Lock
1.Select “Locks > "Phone Lock" > “Auto phone lock”.Select "Phone Lock".
2.Select “Off”.
3.Enter a PIN code.
4.Press "OK".
Change the PIN Code
1.Select “Locks”.
2.Select "Phone Lock".
3.Select "Change PIN code".
4.Enter the old PIN code.
5.Press "OK".
6.Enter a new PIN code twice.
7.Press "Save".
Automatic lock time
It is possible to change the lock time for the phone lock or key lock to suit personal choice, for example, to shorten it from 20 seconds (default) to 5 seconds, to avoid accidental redailing when the handset is in a pocket. It can also be good to extend it
1.Press “Menu”.
2.Select “Settings” 
in the menu.
3.Select “Locks”.
4.Select “Auto lock time”.
5.Select desired lock time of 5, 10, 20 30 seconds or 1 or 3 minutes
6.Press “Back”.
Deactivate automatic key unlock
It is possible to turn off the automatic key unlock at incoming calls and messages, to avoid unintentional key presses.
1.Press “Menu”.
2.Select “Settings” 
in the menu.
3.Select “Locks”.
4.Select “Auto key unlock”.
5.Select “Off”.
6.Press “Back”.
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