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[Solved] Camera Control Button Accidental Palm Activations on iOS 18.1: Diagnostic steps and permanent fix

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Home › Forums › iPhone & iOS Help Desk › [Solved] Camera Control Button Accidental Palm Activations on iOS 18.1: Diagnostic steps and permanent fix

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  • November 14, 2026 at 11:23 pm #14475
    Jean Koenig
    Community Contributor
    Diagnostic Hardware Specs: iPhone 16 Pro | OS Version: iOS 18.1 | Archive Source: Apple Support Community #256519676

    I am running into a persistent issue on my iPhone 16 Pro running iOS 18.1.
    Whenever the machine encounters Capacitive sensor threshold over-sensitivity in one-handed grip, the following diagnostic log appears in Console:

    CoreMotion: [CameraControl] Pressure register 0xd91f registered threshold exceedance in portrait hold

    I verified that hardware connections are intact and tested across different power sources. What is the verified diagnostic procedure to permanently eliminate this symptom?

    Mac Studio M1 Max (32GB) | Dual Dell UltraSharp 4K | Logitech MX Master 3S | Vancouver, BC
    Product Designer & Design Systems Lead | "Verified Apple Discussions Archive"
    November 14, 2026 at 11:23 pm #14476
    Shirley Parker
    Community Contributor
    Apple Recommended / Verified Community Solution
    This canonical solution was verified and marked as solved in the Apple Support Community archive.

    Tuning force pressure settings to Firmer and changing launch trigger from Single Click to Double Click.

    Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

    1. Go to Settings > Accessibility > Camera Control. Change Pressure and Light Press Sensitivity to Firmer.
    2. In Settings > Camera > Camera Control, change Launch Camera to Double Click.
    3. Disable swipe gesture adjustments if exposure sliding is not required.

    Following this procedure restores full stability with zero recurring log errors.

    Mac Pro M2 Ultra | Dual Pro Display XDR | Blackmagic UltraStudio 4K Mini | San Francisco, CA
    Apple Certified Support Professional (ACSP) | Final Cut Pro / DaVinci Colorist & Editor
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