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

Restore App Data:

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

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

Restore Contacts:

  1. Launch “Settings
  2. Access “Phone management
  3. Tap “Backup & Reset
  4. Under “LG Backup” select “Restore from backup
  5. Tap the backup you want to restore and tap “Start
  6. When prompted with “Restored” tap “Done

Restore Media Files:

  1. Launch “Settings
  2. Go to “Phone Management
  3. Tap “Backup & Reset
  4. Tap “Restore from backup” and select the media file backups you want to restore
  5. Tap “Start” and when prompted, tap “Restart

Restore Media Files from a 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. 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 from where they originate
  6. After the transfer completes, eject the phone storage and safely disconnect the phone from the USB cord

See More: LG Q7: Restore App Data, Contacts, and Media Files