If you happen to personal an M2 MacE book Air or MacE book Pro, there’s an replace…in your cable

There’s a software program replace you might need missed: a brand new firmware for the Apple USB-C to MagSafe 3 Cable used to cost the latest MacE book Air and MacE book Pros.

It’s not clear what the firmware fixes or patches, nevertheless it’s unlikely to incorporate any noticeable adjustments. According to Aaron Zollo on Twitter, the firmware model is 3.1.12 and has construct quantity 10M1543. As far as we all know, it’s the primary time the firmware has been up to date because the cable arrived in 2021 with the brand new MacE book Pro.

There’s no method to instantly replace the cable, nevertheless it ought to replace routinely when plugged into your Mac. While you may examine the firmware of your energy adapter by attaching it to your Mac and clicking on the Apple brand within the high left nook of the menu bar, then About This Mac, System Report, and Power, it’s not clear tips on how to examine the precise firmware model of the cable. On Twitter, some users have reported that “the sunshine on the cable went off then again on after about 10 seconds,” which may point out that the firmware was put in.

In teardowns of the MagSafe cable, you may clearly see a circuit board with quite a few chips much like the MagSafe iPhone charger. In their teardown of the MagSafe Charger for the iPhone, ChargerLab unveiled an ST Arm Cortex M4 180Mhz CPU with a floating-point unit, and 512KB flash reminiscence, so it’s probably an identical chip is within the MagSafe 3 charger.

Several MacBooks use the MagSafe 3 connector for charging, together with the M2 MacE book Air, and the 2021 and 2023 MacE book Pros.

Update 2/17: Added details about the MagSafe iPhone Charger.