Back Up with a USB Storage Device

Back Up with a USB Storage Device

In case of insufficient storage space on your phone, you can back up large files and any data on a USB storage device, such as a USB flash drive or card reader.

Connect your phone to a USB storage device via a USB OTG cable.
Go to Settings > System & updates > Backup & restore > Data backup > External storage and touch USB storage.
Touch BACK UP, select the data you want to back up, then touch Back up.
Follow the onscreen instructions to set the password and password hint. The data will be encrypted and backed up. The password will be required if you want to restore your data backup.

To reset the password, go to the USB storage backup screen, then > Reset password.

The new password is only valid for backups created thereafter.

Restore Your Data from a USB Storage Device

Connect your phone to a USB storage device via a USB OTG cable.
Go to Settings > System & updates > Backup & restore > Data backup > External storage and touch USB storage.
Select the backup you want to restore from the RESTORE FROM BACKUP list.
Select the data you want to restore, touch Restore, and enter the password as prompted.