Dimmed background light on iPhone 12, and won't be adjusted to full light

Background light on my iPhone 12 have been dimmed permanently, and won't go to normal 100%. It happened shortly after upgrade to iOS 17.4.1, and I also feel that the iPhone now is hotter than it was before.

The screen light indicator shows 100%, but the screen are still dimmed and nearly not readable in full daylight/sunlight. For me it looks at least like half of the light is gone in the screen. Wondering if somebody else have experienced this, and got it fixed?

iPhone 12, iOS 17

Posted on May 3, 2024 11:57 PM

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May 4, 2024 12:17 AM in response to Scubadupp

Expressing or conveying visual experiences effectively through these forums may be challenging. For more personalized and in-depth assistance, I recommend securing a Genius Bar Reservation and exploring the various support options provided by Apple.


Get a Genius Bar Reservation and Apple Support Options - Apple

When you encounter issues with your Apple devices, the Genius Bar at Apple Retail Stores is the go-to place for expert assistance. The Genius Bar is staffed by knowledgeable Apple employees, often referred to as "Geniuses," who can diagnose and resolve a wide range of hardware and software-related problems. To ensure personalized attention and a convenient visit, Apple provides the option to schedule a Genius Bar Reservation.


Contact Genius Bar.

Manage Reservations - My Reservations - Apple



May 4, 2024 12:17 AM in response to Scubadupp

It's not always the iOS update's fault!  Many things can cause phone problems.  If you tell people you think it's an iOS update, it might make it harder to fix or find a solution for the real issue.


Remember, the right question often leads to the solution!



iOS updates aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. The majority of the issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.


Kindly consider checking your settings and addressing any device issues before attributing the issue to external factors. This could be a pure coincidence that the iOS update affected the iPhone functions.


Before initiating a standard iOS update, it's advisable to create a backup. Have you completed this step? If yes, proceed with the restoration from the backup.



See what each update does: About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...


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Dimmed background light on iPhone 12, and won't be adjusted to full light

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