What is the floating circle on the screen that opens another screen in grayscale?

That would be the Assistive Touch icon. To disable go to Settings - General - Accessibility - Assistive Touch =Off

Stedman

Can you screenshot it (quickly press and release the home and power buttons at the same time)?

You're quite welcome. It doesn't actually enhance the touch. It simply provides one more method to access the "Home" screen and other functions.

Stedman

I usually recommend users enable AssistiveTouch if their home or power button is physically broken and they do not want to get it replaced:

Hardware Defect: Home or Power Button

(Note that I am a representative of the organization for the above link, which is not endorsed by Apple)

Dear Mr SJ0123

You seem to have a clue about all the tricks. As many I have read on this communtiy site, my power button is unresponsive. I have dealt with the power on and off by setting the Auto-Lock function to 1 minute, which is truly not trouble. Since my warranty is past, in Switzerland we must cough up 260CHF (275$) for a replacement.

I can manage..EXCEPT I MISS MY SCREEN SHOT!

Any ideas about how to use this function w/out the power button? Is this Assistive Touch my answer? I read on your website and really didn't get the impression that it would work.

Thanks for any hints.

Dodri13

AssistiveTouch will allow you to take a screenshot in spite of your broken power button. After enabling it, you would tap on the Device menu, and you should see something that says Lock Screen, which refers to the power button. So if you press the physical home button at the same time as the on screen Lock Screen button, this will take a screenshot.