Automatically back up data & settings
  1. Open your phone’s Settings app.
  2. Tap System  Backup.​ If these steps don’t match your phone’s settings, try searching your settings app for 'backup'.
  3. Turn on your backup service.
  4. Make sure you have successfully created a backup before switching over to a new phone.
Manually back up data & settings
  1. Open your phone’s Settings app.
  2. Tap System  Backup. If these steps don’t match your phone’s settings, try searching your settings app for 'backup', or get help from your device manufacturer.
  3. Tap Back up now  Continue.
Once you have done a valid backup, you need to restore your backup on another device in order to access your previous data.