Sony Ericsson P910a - Manual (Page 169)

Control panel 169
Preliminary Layla850 P1B
• Disable PIN A PIN code that is disabled is not requested to
authorize an operation to proceed.
To change the PIN code
1. Select the PIN you want to change from the choice list.
2. Select
Change PIN .
If a PIN code has been blocked, you must unblock it before it
can be used again. Select the PIN and select
Change PIN .