iPhone 5c display brightens in "steps" upon wakeup
I replaced the iPhone 5c display with the complete assembly, including home button and selfie camera.
Sometimes, when the device is asleep for more than a few minutes, and I wake it up, the screen brighness seems to come up in two steps: dim to normal in step which takes less than a second. However, if the phone has been on, and I either put it on sleep or it happens automatically after a few minutes, and I wake it up again, the screen brightness usually comes up to normal more gradually, but still in a second or so.
This doesn't always happen. The screen otherwise works perfectly.
I don't remember if this happened with the original screen, which I replaces because my son damaged it.
Don't know whether this is a hardware or software issue, or if it is normal, or if I should care. After I replaced this screen it's on it's second life anyway . . .
Is this a good question?