Q: how to resolve the ‘Slide to Upgrade’ bug Iphone 5s

I'm try to apply the same way of how to resolve the ‘Slide to Upgrade’ bug but actually once I tried to click on Restore Backup icon its not appear.

also I'm try to stop Find my iPhone but I can't as per Apple way of resolve this issue.

If the Slide to Upgrade screen won't go away after you update to iOS 9 - Apple Support

is there is onther way to solve the slide to upgrade bug?