Qtopia phone can be protected by PIN numbers at two levels: the SIM card level and the phone device level. To change either of the locks you must know the PIN.
Use to highlight the type of lock (SIM or Phone), then press
Select to change it.
Highlight change and Select, enter PIN number then press Select.
Highlight protection on and Select to activate new lock.
You can also lock the display manually or use auto lock in association with power management. The auto lock is enabled from the Display tab in the Power Management settings.