Nokia E55 - Manual (Page 124)

Security and data management
Manage the data and software on your device, and take care
of the security of the device and its contents.
Important: Your device can only support one antivirus
application. Having more than one application with antivirus
functionality could affect performance and operation or
cause the device to stop functioning.
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 , 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
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