It can be stopped regularly depending on the operating system of the terminal.
Curtain is a simple screen filter.It was created with the aim of this to relieve eye fatigue remove brightness.
Blue Light cut effect if the warm colors such as sepia.
It is fortunate that the slight fatigue even a little.
There are a few to be careful about the specifications of the operating system and the function of the application.
Put simply press the power button repeatedly for 10 seconds.When forced release begins curtain will stop.
In this case, we hope to manually update.
Thank you for your understanding.
For More Info Google Play
Supported Android
{4.0 and UP}
Supported Android Version:-
Ice Cream Sandwich (4.0–4.0.4)- Jelly Bean(4.1–4.3.1)- KitKat (4.4–4.4.4)- Lollipop (5.0–5.0.2) or UP
Download Curtain 1.1.0 APK For Android