I have a similar issue with my S10e. I can change my wallpaper, but I just want a solid color for the lockscreen. I have text on it, & it's hard to see. Or any way to change the text color on there? I'm thinking not. Also, I find it very confusing changing the wallpaper on the lockscreen vs home screen. Can someone go over the steps for each? It seems like I'm changing one but it changes the other instead. Thanks.