We recommend using a cloud storage service in order to backup your data to ensure that you don’t lose anything on your Shadow. Most frequent suggestions include: OneDrive, Dropbox, and Google Drive.
You’re more than welcome to try using an external harddrive; however, we cannot guarantee that they’ll work with Shadow as they require an extremely high and stable amount of upload speed in order to transfer files securely and completely. Any other suggestions users may have are highly welcomed.
You’re also welcome to check out our help center articles here: