NOTE: You can visit this thread for a guide on how to back up app data, contacts, and media files.

Restore App Data:

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

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

Restore Contacts:

  1. Open “Settings
  2. Go to “Phone management
  3. Tap “Backup & reset
  4. Under “LG Backup” select “Restore from backup
  5. Tap the backup you want to restore
  6. Tap “Start
  7. At the “Restored” prompt tap “Done

Restore Media Files:

  1. Open “Settings
  2. Access “Phone Management” > “Backup & Reset
  3. Tap “Restore from backup
  4. Select the media file backups you want to restore
  5. Tap “Start” at the prompt
  6. Tap “Restart” when prompted

Restore Media Files from a PC:

  1. Connect the Android device to the computer via USB
  2. On the phone, enable “Media device” / “File Transfer” at the prompt or from the Notification area
  3. Navigate to the media file backups on the PC
  4. Copy and transfer the files to the phone storage, preferably in the folders of origin
  5. Once the transfer completes, eject the phone storage and safely disconnect the device from the USB port

See More: LG V35 ThinQ: Restore App Data, Contacts, and Media Files