Skip to content
MappleCare Community ↗

MappleCare Community

Reply To: [Solved] MacBook Pro 16″ M1 Pro encountering MagSafe 3 Blinking Amber LED and Refusing to Charge after update (macOS Sonoma 14.6)

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

All Forum Rooms

Home › Forums › Battery, Charging & Thermal Care › [Solved] MacBook Pro 16″ M1 Pro encountering MagSafe 3 Blinking Amber LED and Refusing to Charge after update (macOS Sonoma 14.6) › Reply To: [Solved] MacBook Pro 16″ M1 Pro encountering MagSafe 3 Blinking Amber LED and Refusing to Charge after update (macOS Sonoma 14.6)

November 14, 2026 at 10:54 pm #13960
Penelope Campbell
Senior Specialist (Lvl 8)
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 Pro (36GB) | Studio Display | Magic Mouse & Trackpad | Boulder, CO
Apple Certified Support Professional (ACSP) | Product Designer & Design Systems Lead