In this tutorial, we show you how to increase the brightness of your dark iPhone screen and prevent it from decreasing automatically and unnecessarily in the wrong situations.
These solutions will fix the problem if your iPhone screen is dim, brightness automatically goes down, or the iPhone screen is dark but brightness is up, and other similar issues.
Is it normal for my iPhone screen to be too dark or randomly change brightness?
Yes. It’s normal for your iPhone screen to automatically dim and change the brightness levels depending on ambient lighting.
Most smartphones, including your iPhone, have an ambient light sensor that powers the auto-brightness feature. Using this, your phone analyzes the light around you and adjusts the brightness of the iPhone display accordingly.
For example, if you are in strong light (like sunlight, studio, etc.), it’ll automatically set your iPhone display to the maximum, making it easier to see. But when you are in poor lighting conditions (indoors, in a movie hall, at night with lights off, and such), the iPhone screen brightness will automatically be at the minimum level. This ensures your eyes are comfortable viewing the display.
In most cases, auto-brightness works flawlessly. But since your iPhone brightness is low or automatically goes down abruptly at inappropriate times, auto-brightness is the most likely culprit.
How to fix iPhone dark screen and make it brighter
Let’s see how to fix it and make your iPhone screen bright again. As always, we will start with the basic solutions. And for most users, these basic ones are sufficient to solve the dim screen brightness issue. If not, you can turn off auto-brightness to fix this issue (steps below).
1. Wipe the top of your iPhone
The top portion of your iPhone has the ambient light sensor responsible for reading the light levels around you and adjusting the screen brightness.
After long calls, the top part of your iPhone might get body oils, dirt, etc. All these block the ambient light sensor from functioning correctly.
So, if your iPhone screen brightness is automatically going down even when you’re sitting at the same place with constant light, use a soft, dry cloth to wipe the top portion of your iPhone.
Once that’s done, iPhone screen brightness should not misbehave.
Further, if you are using such a fancy or seal-proof case that blocks the top part of your iPhone, please remove it so that auto-brightness can function correctly.
2. Check iPhone screen brightness and manually adjust it
Here are three ways to increase your iPhone screen brightness:
I. Via the Control Center:
Open Control Center.
On iPhone with Face ID, swipe down from the top-right of the screen.
On iPhone with from Home button, swipe up from the bottom edge of the screen.
Drag the brightness slider up.
II. Via the Settings app:
Go to iPhone Settings > Display & Brightness.
Drag the brightness slider to the right.
III. Using Siri:
Call Siri using any method you usually do. Now, ask it something like:
Turn up screen brightness.
Increase screen brightness.
Set screen brightness to 75%.
Set screen brightness to maximum.
3. Restart your iPhone
During regular use, it’s not unusual for your device to temporary glitch. One reliable and quick solution to fix this is to switch off your iPhone and switch it on after a minute.
4. Check Accessibility settings
Reduce White Point lowers the intensity of bright colors on your iPhone screen, making it easier for some people to see the display. When it’s enabled, your iPhone screen goes dark even when brightness is all the way up.
Here’s how to turn off Reduce White Point to fix the dim iPhone screen:
Open Settings and tap Accessibility.
Tap Display & Text Size.
Turn off Reduce White Point.
If you want to keep it enabled, drag the slider to the left at 25% only.
5. Turn off Low Power Mode
Higher the screen brightness, the more battery it consumes. Thus, your iPhone will slightly decrease the screen brightness in low power mode to preserve the battery.
To restore iPhone screen brightness, call Siri and ask it to turn off Low Power Mode or go to Settings > Battery and turn off the switch for Low Power Mode.
6. Screen brightness in VLC and other media apps
Many video player apps or ones where you edit photos and clips have their own screen brightness slider. Some browsers like Aloha also have an invisible screen brightness slider when you play videos in them. One random, unintentional swipe down on the screen, and the iPhone brightness might go down.
To address this, look for any brightness button or slider in the app and make sure it is set to a comfortable level. If none is visible, consider swiping vertically (or horizontally) on the screen’s left and right (and top and lower) parts to reveal any such brightness slider.
7. Turn off Do Not Disturb
In iOS 15, when your iPhone is in Do Not Disturb (DND) mode, the Lock Screen is dimmed significantly. To make it normal and brighter, tap the moon icon > Do Not Disturb to turn it off.