Dark screen

[craigbull]

I can't turn on dark screen on my galaxy j5 prime,it is running on android 8

[craigbull]

but there is a dark screen option is available in My phone, but I can't turn on it

[talk2venky]

in android pie , u can't use night mode with custom theme. may be you can try applying default theme and then can try.

[Harshfuletra]

i can't turn on dark screen on my Galaxy j5 prime