It's important that you update your mobile phone with the newest software, as the manufacturer continuously corrects errors. It's recommended that you back up the phone memory first. Remember, you need to set up your mobile phone for Internet.
Find "Software Update"
Press the menu icon.
Press Update Center.
Press Software Update.
Update phone software
Press Check now for update.
If a new software version is available, it's displayed.
Follow the instructions on the display to update your mobile phone's software.