14-03-2018 09:53 PM
Your screen or motherboard is damaged. Have you dropped the phone or allowed it to get excessively wet?
Your phone should still be under warranty, so you can either contact Samsung direct here or take your phone into EE and they will send it off for assessment.
15-03-2018 07:09 AM
Hi thanks for replying it's only 4 weeks old and in a protective case and never been dropped or for wet. This is my first Samsung as always had Apple so very unhappy. Not sure how I can get it sorted as I am out the country on work for the next 2 months! I will try contact EE
16-03-2018 07:56 AM
I notice there's no edge screen handle in your photo. It might mean that somehow the handle has been set to maximum height and green colour. So worth checking the settings.
Of course, it's also possible the fault covers up the edge screen, but still worth spending a minute checking.
18-03-2018 04:00 PM
On Oreo its
Settings>Display>Edge Screen>Edge Panels>Three Dots (In top right)>Edge Panel Handle
to check the size and transparency.