My screen flashed and now is blank ?

[MrsCrisps]

I was on my phone looking at an app when it flashed (like taking a picture) and then went blank. There is a blue strip of light at the top of the screen but the rest is black. I can't even turn it off ?

[Leanne_T]

Morning @MrsCrisps

Thanks for posting on the community. 

Which phone are you using? 

Have you recently downloaded the app? 

Thanks 🙂

Leanne.