Skip to content
MappleCare Community ↗

MappleCare Community

[Solved] How to fix Apple Pencil Pro Squeeze & Hover Gesture Failure caused by Digitizer sensor BLE calibration handshake desynchronization on iPad Air 11″ M2

Find answers from other Apple users or start a discussion about your device.

All Forum Rooms

Home › Forums › iPad & iPadOS Support › [Solved] How to fix Apple Pencil Pro Squeeze & Hover Gesture Failure caused by Digitizer sensor BLE calibration handshake desynchronization on iPad Air 11″ M2

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • November 15, 2026 at 12:41 am #15784
    Lauren Scott
    Community Contributor
    Diagnostic Hardware Specs: iPad Air 11″ M2 | OS Version: iPadOS 18.1 | Archive Source: Apple Support Community #256332174

    I am running into a persistent issue on my iPad Air 11″ M2 running iPadOS 18.1.
    Whenever the machine encounters Digitizer sensor BLE calibration handshake desynchronization, the following diagnostic log appears in Console:

    PencilService: [Bluetooth] Haptic squeeze sensor payload CRC mismatch on peripheral 0xa9cd

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

    MacBook Pro 14″ M4 (32GB) | Studio Display | YubiKey 5C NFC | Paris, FR
    Enterprise Mac Sysadmin & Jamf Pro Architect | "Verified Apple Discussions Archive"
    November 15, 2026 at 12:41 am #15785
    Brenda Krueger
    Community Contributor
    Apple Recommended / Verified Community Solution
    This canonical solution was verified and marked as solved in the Apple Support Community archive.

    Forgetting Bluetooth device, cleaning magnetic inductive strip, and recalibrating Squeeze threshold.

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

    1. In Settings > Bluetooth, tap (i) next to Apple Pencil and select Forget This Device.
    2. Wipe magnetic charging edge of iPad and flat edge of Apple Pencil with microfiber cloth.
    3. Force restart iPad (Vol Up, Vol Down, hold Top button). Re-attach Pencil to recalibrate.

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

    Mac Studio M1 Ultra (64GB) | BenQ SW321C | Final Cut Pro 11 | Dublin, IE
    Apple Certified Support Professional (ACSP) | Final Cut Pro / DaVinci Colorist & Editor
  • Author
    Posts
Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.