z1 screen brightness issue

[thespirt]

my xperia Z1 brightness settings is auto brightness… when i switched off the screen for amount of time and switch it on to use my phone .. screen brightness go very high then back to the original state… what is this ,why is this happen and what is the solution please ????

[Samuel1]

If you have auto brightness active it will change the brightness depending on your surroundings. Before it's able to adjust to the surroundings it might go very bright before it finds the optimal setting for the situation.