iPhone 7 not restored from iCloud back up?
I have had an iPhone 7 for about 5 weeks. It has iOS 11.2.6 installed. When I saw the iOS 11.3 update available, I went to install it, but Install Now was dimmed out, and under it was, "You can install this update when your iPhone is finished restoring from the iCloud backup."
I went to my Apple ID settings. Under iCloud Storage, Backups, it shows the last backup from my old iPhone on 3/14/18, the day I bought the iPhone 7. For the iPhone 7, it shows that it's never been backed up, and below that, it states, "Backup options will be available when your iPhone is restored from this backup." I've tried to install it two more times, but it still won't let me.
Please advise!
iPhone 7, iOS 11.2.6, Owned for 5 weeks +