[Gabriel Miller]

Apple Recommended / Verified Community Solution

This canonical solution was verified and marked as solved in the Apple Support Community archive.

Replacing with certified 48Gbps Ultra High Speed HDMI cable and verifying eARC pass-through mode.

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

1. Ensure HDMI cable is certified Ultra High Speed 48Gbps (HDMI 2.1); 18Gbps cables will dropout during Atmos MAT transmission.
2. In tvOS Settings > Video and Audio > Audio Output, set Audio Format to Auto, Dolby Atmos.
3. In TV HDMI CEC settings, ensure eARC is set to Pass-through / Bitstream, not PCM stereo.

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

MacBook Pro 16″ M3 Max (48GB) | Sennheiser HD 800 S | Sibelius Ultimate | Copenhagen, DK

Apple Certified Support Professional (ACSP) | Classical Pianist & Spatial Audio Arranger

[Gabriel Miller]

Apple Recommended / Verified Community Solution

This canonical solution was verified and marked as solved in the Apple Support Community archive.

Completely discharging GaN brick capacitors, cleaning pogo pins with 99% IPA, and triggering PMU cold reset.

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

1. Unplug power brick from the wall and disconnect MagSafe cable. Wait 2 full minutes for capacitors to discharge.
2. Clean the 5 gold spring-loaded pins with 99% isopropyl alcohol and a lint-free swab.
3. Plug adapter directly to wall, connect MagSafe to Mac, and power on. The LED will illuminate steady amber.

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

MacBook Pro 16″ M3 Max (48GB) | Sennheiser HD 800 S | Sibelius Ultimate | Copenhagen, DK

Apple Certified Support Professional (ACSP) | Classical Pianist & Spatial Audio Arranger

[Gabriel Miller]

Apple Recommended / Verified Community Solution

This canonical solution was verified and marked as solved in the Apple Support Community archive.

Deep cleaning outer black microphone mesh using dry adhesive putty and performing 15-second case reset.

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

1. Remove silicone ear tip. Press dry Blu-Tack adhesive putty firmly against the outer oval microphone grilles and pull away sharply.
2. Place AirPods in case, close lid 30s. Open lid, hold back button for 15s until LED flashes amber, then white.
3. Re-pair with iPhone. If noise persists, visit Apple Store for acoustic fixture testing.

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

MacBook Pro 16″ M3 Max (48GB) | Sennheiser HD 800 S | Sibelius Ultimate | Copenhagen, DK

Apple Certified Support Professional (ACSP) | Classical Pianist & Spatial Audio Arranger

[Author]

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