Lock svreen

[Kingranch1414]

Hello and thanks everyone,

My wife's note 8 all of a sudden had her lock screen come up with a yellow screen that looks like an emoji.
I attached a picture of it.

So my question is how to get rid of it

Thanks Terry

 

[Tim1954]

Pick another image and assign it to lock screen...

 

[Kingranch1414]

I can not find where that is I have looked everywhere. When the phone is sleeping and you push the power button that emoji imiage appears.