Backing up the phone memory on my mobile phone
If you want to update the software on your mobile phone, it's recommended you back up the phone memory.
1. Find "Back up"
Tap the menu icon.
Tap Back up & restore.
Tap Back up.
2. Back up phone memory
Tap the drop down list below "WHERE TO STORE DATA".
Tap SD card.
Tap the box next to the following data types until the required data types have been selected:
System apps data
Downloaded apps with data
Tap Back up now.
Key in the required access code and tap OK.
3. Return to the home screen
Tap the home icon to return to the home screen.