NOTE: You can visit this thread for a guide on how to back up data on the phone.

Restore Contacts from SD:

  1. Open “Contacts
  2. Tap “Menu” > “Settings
  3. If necessary, go to “Contacts to display” and switch to “All contacts
  4. Tap “Import/Export contacts
  5. Tap “Import from SD card” > “OK

Restore Media Files from SD:

  1. Launch “My Files
  2. Select “SD card” and tap “Menu” > “Edit
  3. Tick the boxes associated with the media files you want to restore
  4. Tap “Menu” > “Move” > “Internal storage
  5. Tap “Move here
  6. Alternatively, tap “Create folder” or the folder name to restore the files to a different location
  7. Tap “Move here” to confirm

Restore Media Files from a PC:

  1. Connect the Android device to the PC via USB
  2. Enable “File Transfer” / “Media device” at the prompt or from the Notification area
  3. Launch the File Explorer on the computer
  4. Locate the media file backups on the PC
  5. Copy and paste the files to the phone storage, preferably in the folders of origin or the “Media” directory
  6. Once done, safely disconnect the device from the USB port

Restore Media Files from a Mac Computer:

  1. Connect the Samsung phone to the computer via USB
  2. On the phone, enable “Media device” / “File Transfer” when prompted or from the Notification area
  3. Open Kies on the Mac and go to “Back up / restore
  4. Go to the “Restore” tab and tick the boxes linked with “Music”, “Photos” and other media file types you want to restore
  5. Click “Restore” and follow the on-screen prompts to complete the process
  6. Once done, eject the phone storage by dragging the virtual drive from the desktop and dropping it into the thrash can
  7. You can safely disconnect the phone from the USB port

See More: Samsung Galaxy J7 Prime 2: Restore Contacts and Media Files