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Reply To: [Solved] MacBook Pro 16″ M3 Max MagSafe 3 Blinking Amber LED and Refusing to Charge (macOS Sonoma 14.6) – Verified Troubleshooting

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Home › Forums › Battery, Charging & Thermal Care › [Solved] MacBook Pro 16″ M3 Max MagSafe 3 Blinking Amber LED and Refusing to Charge (macOS Sonoma 14.6) – Verified Troubleshooting › Reply To: [Solved] MacBook Pro 16″ M3 Max MagSafe 3 Blinking Amber LED and Refusing to Charge (macOS Sonoma 14.6) – Verified Troubleshooting

November 14, 2026 at 10:50 pm #13890
Benjamin Schmitz
Community Contributor
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.

Apple Vision Pro (1TB) | Mac mini M4 Pro (48GB) | Studio Display | Cambridge, UK
Apple Certified Support Professional (ACSP) | visionOS Spatial Computing Developer