white, grey and black circle floating icon on mobile android phone screen

[Android Central Question]

there is white circle surrounded by a grey and than a black circle..it is a floating icon and works to turn on a corner menu for apps which in my case are in german...there is no setting for this..my mobile phone is a samsung J&...it came with the latest system update...how can i set it up in english or remove it...!

 

[SpookDroid]

Try tapping and holding the floating button. That doesn't sound like a system app. Try booting up in Safe Mode too...if it doesn't show up there, it's definitely a 3rd party app.