Back Up App Data:

  1. Launch “Settings
  2. Access “Cloud and account
  3. Tap “Backup & Restore
  4. Enable “Back up my data” to back up data to your account
  5. Enable “Automatic Restore” to allow data to be restored automatically when reinstalling apps or logging in with the backup account

Back Up Contacts:

  1. Open “Contacts
  2. Access “Cloud and account
  3. Access “Accounts
  4. Select the desired backup account
  5. Enable “Contacts
  6. Tap “Menu” > “Sync Now

Back Up Contacts to SD Storage:

  1. Launch “Contacts
  2. Tap “Menu” > “Settings
  3. Switch to “All contacts” if necessary
  4. Tap “Import/Export” > “Export to SD
  5. Tap “OK “to confirm

Back Up Media Files to Phone Storage:

  1. Open “My Files
  2. Access “Internal storage” and tap “menu
  3. Tap “Share
  4. Select the desired contacts and tap “Share
  5. Select the desired backup location

Back Up Media Files on a Windows PC:

  1. Connect the Android phone to the PC via USB
  2. On the phone, enable “File Transfer” / “Media device” at the prompt or from the Notification area
  3. Open the File Explorer on the computer and navigate to the media files on the phone
  4. Copy and paste the files to the desired backup location on the PC
  5. Once done, eject the phone storage and safely disconnect the device from the USB port

See More: Samsung Galaxy Sol 3: Back Up App Data, Contacts, and Media Files