It is very common for the brightness of the iPhone 12 to drop on its own, without you having touched or configured anything on your laptop. Don't worry, this phenomenon is quite common and was developed by the manufacturer Apple. We will therefore detail in this tutorial the reasons why the brightness of your iPhone 12 starts to decrease suddenly without you being able to know why.

The brightness drops by itself iphone-12

The automatic brightness of your iPhone 12

You should know that iPhones are equipped with ambient light sensors which give them the possibility of adjusting in real time the level of brightness of the screen of your device in relation to the lighting conditions of your environment. The sensors then decrease the lighting in the darkest places and increase it in the brightest places. Your iPhone 12 therefore sees its brightness reduce or increase on its own depending on the lighting conditions in which you are.

If your iPhone 12 brightness drops on its own, turn off auto-brightness

In order to prevent the brightness slider of your iPhone 12 from changing according to the lighting conditions, you can completely remove the automatic brightness from your iOS mobile. Here are the steps to follow to deactivate this feature:

  • Open the Settings section of your iPhone 12
  • Then go to the Accessibility section
  • Now go to Display and text size
  • To reset all auto-brightness settings, uncheck auto-brightness and then re-enable it by following

Why do iOS mobiles have auto brightness?

Your iPhone 12 comes with auto-brightness to save battery life and extend the life of your laptop battery. Indeed, when the brightness of your iPhone 12 is set to maximum, you consume much more energy than if the slider is in the middle, or even lower. To be able to optimize the battery life of your iPhone 12, we advise you to keep the automatic adjustment feature of your mobile phone so that it can adjust your screen or manually adjust the brightness on your iPhone 12 when you are not using it. you don't need a lot of light. You can also activate the Night Shift mode in order to adjust all the colors of your screen.

Adjust your iOS laptop screen light

To adjust the brightness of your iPhone 12, you will have to go through the control center or through the shortcut of your mobile. You can adjust the brightness of your iPhone 12 quite quickly by swiping the screen of your laptop from the bottom to the top and moving the brightness bar to adjust it according to your needs.

To adjust the brightness of your iPhone 12 via the settings, you must proceed as follows:

  • Open Settings on your iPhone 12
  • Then go to Brightness and Display
  • Drag the slider right or left depending on your brightness needs

It is also possible to activate Dark Mode to increase the visual comfort of your iPhone 12.

In the event that you want other information on your iPhone 12, we invite you to take a look at the other articles in the category: iPhone 12.