Read help info
Before updating the phone's software, it is recommended that you back up the phone memory to ensure that no data is lost. It can also be useful to back up the phone memory regularly to ensure that no data is lost in case of defects, crashes etc. Follow these instructions to back up the phone memory.
Before you can back up the phone memory, you need to insert a memory card. Click here to see how.
1. Find "Backup"
2. Select data types
3. Back up phone memory
Wait a moment while the phone is backed up.