iPhone 16 Pro Max brightness repeatedly resets to ZERO after latest iOS 27.0 update
I have an iPhone 16 Pro Max, and this problem began immediately after the latest iOS update. It was not happening at all before the update.
Multiple times per hour, often when I pick up or begin using the phone, the display suddenly becomes so dark that I can barely see the screen. When I finally manage to access the brightness setting, the actual brightness slider has moved all the way down to zero.
This is not simply normal screen dimming. The phone is changing the brightness setting itself.
I have already turned off or checked Auto-Brightness, Night Shift, True Tone, Accessibility display settings, Adaptive Power, Focus settings and Shortcuts/Automations. I even removed the brightness slider from Control Center completely to eliminate the possibility that I was accidentally touching it.
The problem continues.
I have also force restarted the phone. None of these troubleshooting steps has corrected it.
The most significant point is that this started only after the latest iOS update. The phone behaved normally before the update.
If anyone else with an iPhone 16 Pro Max is experiencing this after the latest update, please check the brightness slider when your screen goes black. If the slider itself has moved to zero, please add your experience here.
I am trying to determine whether this is a broader iOS bug rather than an isolated hardware problem.
