Screen becomes darker at sunlight

It is not because of the temperature. Now I had the problem almost daily. The screen becomes darker in steps when the phone is at the sun.

i guess something is broken with this phone. Maybe due to a fall or I have no idea.

it is very annoying, the screen is unusable.

what I notice is if I go from 0% brightness to maximum, the screen stops to becoming brighter after it reaches the halft of the scale…

I’m having the problem daily. It is the same described here.

Why won't my iPhone brightness go up? - Apple Community

phone heats up, I don’t know why, because now it isn’t hot.

maybe it adjusts it by itself to make sure the battery output is enough to keep the phone turned on?

I’m not using else than the facebook comment section.

the problem is becoming very annoying because if it is bright the phone becomes unusable.

Thank you for the reply!

I see that the iPhone can lower the brightness to avoid overheating.

I was just scrolling facebook for 10 minutes while sitting on a bench at 1 pm at the sun in Switzerland. Conditions that I consider normal.

I will disable the true tone, the only setting left that might concern it that I didn’t check. And retry the same.

I saw the display becoming darker in a visible step but the brightness was still at maximum.

I read the advice above, I’m sorry but your contributions are both superfluous.

The nearest apple store is at 1,5 hours drive from here.

I will take a video of it.

what could be helpful to know is if it happens to other users when simply using the phone at the sun.

the screen was way darker that at maximum. I saw it become darker in steps.