How to Fix an Unresponsive iPhone Side Button

Difficulty
Beginner
Tested on
iOS 17.5 - iPhone 15 Pro
You will need
Microfiber cloth, 70% isopropyl alcohol, canned air, protective case

Step by step

  1. 1 min

    Clean the button perimeter

    Remove your iPhone from its protective case. Use a soft, dry, lint-free microfiber cloth to wipe the side button and the surrounding frame to remove visible dust or skin oils. If the button feels sticky, lightly dampen the cloth with 70% isopropyl alcohol and clean around the edges.

    Note: Ensure the device is powered off before cleaning with liquid solutions.
  2. 1 min

    Dislodge debris with compressed air

    Hold the iPhone at a slight angle with the side button facing upward. Use a can of compressed air to deliver short, controlled bursts around the button mechanism. This will dislodge lint or small particles trapped in the narrow gap between the button and the chassis.

    Note: Hold the nozzle at least two inches away from the device to prevent condensation.
  3. 2 min

    Perform a force restart

    If the hardware appears clear, rule out software freezing by performing a force restart. Quickly press and release the Volume Up button, quickly press and release the Volume Down button, and then press and hold the side button until the Apple logo appears on the display.

    Note: This process ignores the side button's physical state for the restart signal.
  4. 1 min

    Check for iOS updates

    Navigate to Settings > General > Software Update. Ensure your device is running the latest version of iOS to eliminate potential firmware bugs affecting input response. If an update is available, install it and test the button functionality immediately following the reboot.

  5. 1 min

    Configure AssistiveTouch as a temporary workaround

    Navigate to Settings > Accessibility > Touch > AssistiveTouch and toggle the switch to On. This creates an on-screen menu that replicates the functions of the physical side button. Use the Device menu within AssistiveTouch to lock the screen or trigger an emergency shutdown.

    Note: If hardware remains unresponsive after these steps, contact Apple Support for a physical inspection.