Verify 140W DC adapter firmware update after internet loss

Hello guys, hope you’re doing well. I have a weird question, yesterday I heard apple released a new firmware update for the 140w dc adapter. While doing the firmware update, my Mac lost internet connection. So I was wondering, how can I know if the update successfully installed even if it says it has the latest firmware version in the system log files. Thank you in advance

Posted on Nov 19, 2025 5:19 PM

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Posted on Nov 20, 2025 8:34 AM

You can check the installed firmware of the AC adapter by opening the System Information app and navigating to power. In there it should show the firmware version.


Old Firmware: 1040073

New Firmware: 1040084


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Verify 140W DC adapter firmware update after internet loss

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