Auto brightness missing

You can just ask siri to turn it on and off for you.

Welcome! :)

Ever since updating 16.5.1 my auto brightness no longer works and the toggle has disappeared in the settings. Also my screen no longer goes black automatically when on a call, I have to hit the side button to lock the screen so my face doesn’t push the screen buttons. This also started with the update to 16.5.1. Will there be any corrections for these issues?

Hi Jkevlin-,

It would be our pleasure to assist today.

You're in the right place for Auto-Brightness. It should be listed right under Reduce White Point at Settings > Accessibility > Display & Text Size. If you're not seeing it when you scroll all the way to the bottom, let's try a few basic troubleshooting steps to see if we can bring it back.

First, update your iPhone. Apple released iOS 16.4 today, and an update can help reindex or system files or resolve minor issues on your device.

1. Back up your device using iCloud or your computer.

2. Plug your device into power and connect to the internet with Wi-Fi.

3. Go to Settings > General, then tap Software Update.

4. If you see more than one software update option available, choose the one that you want to install.

6. Tap Install Now. If you see Download and Install instead, tap it to download the update, enter your passcode, then tap Install Now. If you don't know your passcode, learn what to do.

If Auto-Brightness is still missing after you update, check to see if you have Screen Time enabled with any content or privacy restrictions. Use parental controls on your child's iPhone, iPad, and iPod touch will help you with this step.

Thank you for being part of the Apple Support Communities.

Kindest Regards.

Hi

my phone is up to date. But I still can’t find the auto-brightness feature.

Lindseyannee_312 wrote:

Also my screen no longer goes black automatically when on a call, I have to hit the side button to lock the screen so my face doesn’t push the screen buttons.

This sounds like a hardware issue.

Start here.

iPhone Repair & Service - Apple Support

So the toggle was restored but it doesn’t do anything. I switch it on and off and the screen doesn’t dim or brighten or change at all. It’s like it’s just for show. It’s pretty frustrating to have to constantly adjust the brightness manually. And it’s like with every update I wonder what other functions you’re removing.

Today, I went to Studio A store, the clerk helped me to run diagnostic and found the ambient light sensor was broken. Finally, I found the root cause. By the way, my iphone is second-hand iphone X. If you have the same issue, which auto-brightness option is missing, I suggest you bring your iphone to service center for diagnostic.

Hey, just updated yesterday to ver 16.5 and can’t find the auto brightness button in my settings, tried the method above and still haven’t found it.

any help would be appreciated, cheers.

Yeah

My Iphone is the same yet my warranty just ran out

Good tip! I had the same issue - above steps didn't work, and Auto-brightness still not listed. Asking Siri to turn off was the only way to get auto brightness to turn off.

I can ask siri to turn on/off auto-brightness. But it is not working for function. The brightness would not be ajusted while light changing.

Why is auto brightness missing on my iPhone

Worked like a charm