I need your help... I have the samsung S8, since the latest software update, I have an icon along my top screen that I can't remove, fix or find anywhere.... It looks like a warning triangle and inside is 2 small arrows, one pointing up and the other pointing down... It's across my top bar on lock screen, when I pull down the top bar I have no issues that need looking at?... Can anyone advise on how I fix whatever issue my handset has? I assume it's WiFi or data related?