You are now able to backup your contacts to the memory Card on your phone. No more losing the contacts on your phone if your mobile phone is spoilt or accidentally deleting the contacts.
You can backup contacts by following the below steps

1. Press Menu and Select Contacts
2. Go to new contact and select Options on the left soft key
3. Select Advanced
4. Select Backup to m.card
5. Backup created on your memory card

You can restored your backup details by choosing the Restore from m.card. You can choose whether you want to delete the old contacts from the phone before restoring your contacts. This function is available on most Sony Ericsson models released in 2008.