Nokia 5730 XpressMusic Nokia 5730 XpressMusic User Guide in US English - Page 63

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 > Settings > 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 > Applications > Organiser > 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. Security and data management To open a locked memory card, select Options > Unlock memory card. Enter the password. If you cannot recall the password to unlock a locked memory card, you may reformat the card, in which case the card is unlocked and password removed. Formatting a memory card deletes all data stored on the card. Certificate manager Select Menu > Settings > Settings and General > Security > Certificate management. Digital certificates are used to verify the origins of software but do not guarantee safety. There are four different types of certificates: authority certificates, personal certificates, trusted site certificates, and device certificates. During a secure connection, a server may send a server certificate to your device. Upon receipt, it is checked through an authority certificate stored in your device. You receive notification if the identity of the server is not authentic or if you do not have the correct certificate in your device. You can download a certificate from a website, or receive a certificate as a message. Certificates should be used when you connect to an online bank or a remote server to transfer confidential information. They should also be used if you want to reduce the risk of viruses or other malicious software, and to check the authenticity of software when you download and install software to your device. Tip: When you add a new certificate, check its authenticity. © 2009 Nokia. All rights reserved. 63