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

Restore App Data:

  1. Open “Settings
  2. Go to “Phone Management
  3. Tap “Backup & Reset” > “Restore from backup
  4. Select the desired backup file
  5. Tap “Start” > “Done

NOTE: You might have to reboot the device to complete the process.

Restore Contacts:

  1. Launch “Settings
  2. Go to “Phone Management
  3. Tap “Backup & Reset
  4. Under “LG Backup” select “Restore from backup
  5. Tap the desired backup file
  6. Tap “Start” > “Done

Restore Media Files:

  1. Open “Settings
  2. Access “Phone Management
  3. Tap “Backup & Reset” > “Restore from backup
  4. Select the desired media files
  5. Tap “Start” > “Restart

Restore Media Files from a PC:

  1. Connect the Android phone to the PC via USB
  2. Enable “File Transfer” / “Media device” on the phone, either when prompted or from the Notification area
  3. Open the File Explorer on the computer
  4. Locate the media backup files on the PC
  5. Copy and paste the files to the phone storage in the folders of origin
  6. Once the transfer completes, eject the phone storage and safely disconnect the device from the USB port



See More: LG V40 ThinQ: Restore App Data, Contacts, and Media Files