Nokia E52 - Lock the Device; Memory Card Security

Lock the device
The lock code protects your device against unauthorised use. The preset code is 12345.
To lock the device, in the home screen, press the power key, and select Lock phone.
To unlock your device, select Unlock > OK, enter the lock code, and select OK.
To change the lock code, select Menu > Ctrl. panel > Settings and General >
Security > Phone and SIM card. Enter the old code and then the new code twice. The
new code can be 4-255 characters long. Both alphabets and digits can be used, and both
uppercase and lowercase alphabets are possible.
Write down the new code, and keep it secret and in a safe place separate from your
device. If you forget the lock code and your device is locked, you must take the device
to a Nokia authorised service facility and additional charges may apply. To unlock the
device, the software must be reloaded, and the data you have saved in the device may
be lost.
You can also lock the device remotely by sending a text message to the device. To enable
remote locking, and to define the text for the message, select Menu > Ctrl. panel >
Settings and General > Security > Phone and SIM card > Remote phone locking >
Enabled. Enter the remote lock message, and confirm the message. The message must
be at least 5 characters long. Write down the text, as you may need it later.
Memory card security
Select Menu > Office > File mgr..
You can protect a memory card with a password to prevent unauthorised access.
To set a password, select Options > Memory card password > Set. The password can
be up to 8 characters long and is case-sensitive. The password is stored in your device.
You do not need to enter it again while you use the memory card on the same device.
If you use the memory card on another device, you are asked for the password. Not all
memory cards support password protection.
To remove the memory card password, select Options > Memory card password >
Remove. When you remove the password, the data on the memory card is not protected
against unauthorised use.
To open a locked memory card, select Options > Unlock memory card. Enter the
password.
Security and data management 149