Q: 5s stuck on slide to upgrade screen, help!

Hey willjones932,

I understand that after updating to iOS 9, you're unable to get your iPhone to register a slide in order to proceed beyond the "slide to udpate" screen. In such a situation force restarting your iPhone can help get your iPhone to register input again.

Restart your iPhone, iPad, or iPod touch - Apple Support

If your iPhone is still failing to respond to input, the article linked below details additional steps that can help get your iPhone back to a fully functioning state.

If the screen on your iPhone, iPad, or iPod touch doesn't respond to touch - Apple Support

All my best