Answer:
Step-by-step explanation:
There could be a few reasons why your iPhone keeps dimming even with auto-brightness turned off:
1. Battery-saving feature: iPhones have a built-in feature called "Auto-Lock" that conserves battery life by automatically dimming and locking the screen after a certain period of inactivity. You can adjust the Auto-Lock settings in your iPhone's Display & Brightness settings.
2. Display Accommodations: Your iPhone may have display accommodations enabled, such as "Reduce White Point" or "Night Shift," which can cause the screen to appear dimmer. Check the Accessibility settings on your iPhone to see if any display accommodations are turned on and adjust them accordingly.
3. Software bug or glitch: Sometimes, software bugs or glitches can cause unexpected behavior on your iPhone. In such cases, it's recommended to update your iPhone to the latest iOS version or perform a reset by restarting your device.
4. Ambient light sensor issue: The ambient light sensor on your iPhone may be malfunctioning, causing it to incorrectly adjust the screen brightness. In this case, you may need to contact Apple Support or visit an authorized service center to diagnose and fix the hardware issue.
It's worth noting that iPhones are designed to optimize battery life and provide the best viewing experience, so even with auto-brightness turned off, the device may still adjust the screen brightness in certain situations to ensure usability and protect the screen.