Auto brightness issue on iPhone 14 Pro after iOS 18.3 update

Is it bricked or have a brightness issue? Those are two entirely different things.

Were you able to confirm it was due to heat. The Youtube vid was posted 3 years ago on a different iPhone with a different iOS version and listed about 5 things that could be the cause including those mentioned.

It is definitely true that the screen will dim or turn black when it gets too warm, but you would likely see other issues as listed here:

• Charging, including wireless charging, slows or stops
• Cellular radios enter a low-power state; the signal might weaken during this time
• The camera flash or other camera features might be temporarily disabled
• In some apps or features, performance is reduced with lower frame rates or increased processing times

If your iPhone or iPad gets too hot or too cold - Apple Support

The normal cause for those conditions are leaving your phone in a hot car or direct sunlight for an extended period of time.

• Does that seem like that could have been the case for you too?
• Have you ever seen the temperature warning screen?

Do you even know what is meant by "bricked"?

therazor93hd wrote:

I mean sometimes the phone brightness from very bright its fades away! I tried to restart the phone!!! Auto brightness feature is off! I had before an android device did the same!!

Go to Settings > Accessibility > Display & Text Size > Auto-Brightness. Is that switch turned on?

Not sure if that is the setting you had changed.

At Settings > Display & Brightness, Night Shift should be off as well as Tru-Tone.

What happened when you restarted the iPhone?

iPhones have Auto Brightness enabled by default. You can turn it off at this path,

iPhone > Settings > Accessibility > Display & Text > Scroll down > Auto Brightness > off, if it is off, momentarily turn on and then turn off again.

Too high a brightness will consume high levels of your battery capacity. I typically run mine at about ⅓ to ¼ brightness.

Turn off Reduce Transparency in Accessibility. Turn off Always on Display (causes Lock Screen to dim). Turn off attention aware features for Face ID. These are in addition to those settings mentioned above.

Some people turn on Increase Contrast in Accessibility, but I haven’t found that to help.

Some screen protectors and cases have been known to cause issues with the ambient light level sensor.

therazor93hd wrote:

As i said before auto brightness is off!!

And Night Shift and True Tone is off too?

There is an Automatic setting at both Settings > Display & Brightness and Settings > Accessibility, so it was not clear which one you turned off. No need for the !!, as we are just trying to make sure all areas have been checked. The Accessibility setting is the one that is often overlooked, since it is on be default and there is also an Automatic toggle switch at Settings > Display & Brightness.

Unclear what you mean by it being bricked. If that was the case, it would not be switching the auto brightness. Pleas explain what you mean and if it helps, provide a screenshot.