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Reply To: [Solved] MagSafe 3 Blinking Amber LED and Refusing to Charge on macOS Sonoma 14.6: Diagnostic steps and permanent fix

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Home › Forums › Battery, Charging & Thermal Care › [Solved] MagSafe 3 Blinking Amber LED and Refusing to Charge on macOS Sonoma 14.6: Diagnostic steps and permanent fix › Reply To: [Solved] MagSafe 3 Blinking Amber LED and Refusing to Charge on macOS Sonoma 14.6: Diagnostic steps and permanent fix

November 15, 2026 at 12:16 am #15362
Jean Wallace
Certified Tech (Lvl 5)
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.

Mac Studio M2 Ultra (128GB) | ASUS ProArt PA32UCG-K | OWC ThunderBay 8 | Bristol, UK
Apple Certified Support Professional (ACSP) | Final Cut Pro / DaVinci Colorist & Editor