ELI5 : Why do phones and tablets power on and off with full 100 % brightness regardless of the scree brightness settings?
In: Technology
You mean when the device is first booting up?
This is because the sensor that detects ambient light has not been initialized. Once the ambient light sensor is initialized, and the OS has loaded the screen control functions, then it can regulate the screen brightness. Until that happens, the hardware will use the default 100% brightness setting.
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