Some new 14-inch and 16-inch MacBook Pro owners report problems with fast charging over MagSafe 3.
The latest revision to Apple’s magnetically coupled laptop charging system, MagSafe 3, appeared just weeks ago in the new 14-inch and 16-inch MacBook Pro with the M1 Pro or M1 Max processors. Some reports of charging difficulties quickly followed.
Some users have found that they have a persistent flashing yellow LED—Apple calls the color amber—on their MagSafe 3 cable’s magnetic connector when correctly plugged into the port and the included USB-C adapter. MagSafe has always made it effectively impossible to plug in its connector the wrong way: either it makes the right contact with multiple charging elements and can pass power, or it doesn’t. (If charging properly, the cable head’s LED should be a solid yellow; when fully charged, green.)