Diagnostic Hardware Specs: iPad Pro 11″ M4 | OS Version: iPadOS 18.0.1 | Archive Source: Apple Support Community #256512593
I am running into a persistent issue on my iPad Pro 11″ M4 running iPadOS 18.0.1.
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 0xa85d
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 mini M4 (24GB) | PreSonus Quantum HD 8 | Audio-Technica ATH-R70x | Boulder, CO
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