How to Stop iPhone 12 from Dimming: A Step-by-Step Guide

Have you ever been frustrated by your iPhone 12’s screen dimming on its own? It’s a common issue that can be annoying, especially when you’re trying to read or watch something on your phone. Fortunately, there’s a simple fix that you can do in just a few steps. In this article, we’ll walk you through how to stop your iPhone 12 from dimming so that you can enjoy your screen at full brightness.

Step by Step Tutorial: How to Stop iPhone 12 from Dimming

Before we dive into the steps, let’s quickly discuss what we’ll be doing. We’ll be turning off the Auto-Brightness and the Attention Aware features, which are the two main culprits behind unexpected screen dimming.

Step 1: Access the Settings App

Open your iPhone 12’s settings app by tapping on the gear icon.

The Settings app is where you can adjust all sorts of preferences for your iPhone, including display settings. Make sure you’re on the home page of the Settings app to proceed to the next step.

Step 2: Find and Select “Accessibility”

Scroll down and tap on “Accessibility” to access more options.

“Accessibility” may seem like a strange place to find screen brightness settings, but Apple includes many features here that can affect your display.

Step 3: Tap on “Display & Text Size”

Under the Accessibility menu, find and select “Display & Text Size.”

This menu includes options that impact the visual aspect of your iPhone’s display, which is precisely where we need to be.

Step 4: Turn Off “Auto-Brightness”

Scroll down to the bottom and toggle off “Auto-Brightness.”

Auto-Brightness automatically adjusts your screen’s brightness based on ambient light conditions. Turning this off will stop your screen from dimming in response to changes in your environment.

Step 5: Go Back to the Main Settings Page

After disabling Auto-Brightness, return to the main Settings page to address the next feature.

Remember to tap “Settings” at the top left corner of the screen to go back.

Step 6: Tap on “Face ID & Passcode”

Now, find and select “Face ID & Passcode” from the main Settings page.

This is where you’ll find the Attention Aware feature settings.

Step 7: Disable “Attention Aware Features”

Scroll down and toggle off “Attention Aware Features.”

The Attention Aware feature dims your screen when it detects that you’re not looking at your iPhone. Turning it off will prevent your screen from dimming when you look away.

Once you’ve completed these steps, your iPhone 12 should stop dimming unexpectedly. The changes will take effect immediately, and you’ll be able to enjoy your bright screen without interruptions.

Tips: How to Maintain Consistent Screen Brightness on iPhone 12

  • Regularly check for software updates, as they can sometimes reset your settings or introduce new features that affect screen brightness.
  • Manually adjust your screen brightness from the Control Center when needed.
  • Consider enabling “Reduce White Point” under “Display & Text Size” for a less intense brightness that’s easier on the eyes.
  • If you’re in a very dark or very bright environment, you may still need to adjust your brightness manually for optimal visibility.
  • Remember that keeping your screen at full brightness can drain your battery faster, so it may be worth adjusting when you’re low on power.

Frequently Asked Questions

Why does my iPhone 12 screen keep dimming even after I turned off Auto-Brightness?

If your iPhone 12 screen continues to dim after turning off Auto-Brightness, you may need to disable the Attention Aware feature as well. This feature can cause the screen to dim when you’re not looking directly at it.

Can turning off Auto-Brightness affect my battery life?

Yes, turning off Auto-Brightness can affect your battery life because your screen may be at a higher brightness than necessary for longer periods. It’s a trade-off between consistent brightness and battery efficiency.

Does screen brightness affect the health of my iPhone 12’s battery?

Excessive screen brightness can lead to faster battery degradation over time. It’s best to use a moderate brightness level when possible to maintain your battery’s health.

Is there a way to have my screen brightness adjust to my surroundings without using Auto-Brightness?

Unfortunately, without Auto-Brightness, you’ll need to manually adjust your screen brightness from the Control Center based on your environment.

After following these steps, my screen is too bright. What can I do?

You can manually lower your screen brightness from the Control Center or enable “Reduce White Point” in “Display & Text Size” for a less intense screen without dimming.


  1. Access Settings App
  2. Select “Accessibility”
  3. Tap on “Display & Text Size”
  4. Turn off “Auto-Brightness”
  5. Return to the main Settings page
  6. Select “Face ID & Passcode”
  7. Disable “Attention Aware Features”


So there you have it, a straightforward guide on how to stop your iPhone 12 from dimming. By following the steps outlined above, you can take control of your screen’s brightness and keep it consistent, regardless of your surroundings. Remember, while it may be tempting to keep your screen at full brightness all the time, it’s important to consider the impact on your battery life and eye comfort. Adjusting settings like “Reduce White Point” or manually tweaking your brightness can help you find a balance that works best for you. And don’t forget to check out those frequently asked questions if you run into any issues along the way. Here’s to a bright and uninterrupted iPhone 12 experience!

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