Error while updating to Sequoia 15.4 from Sonoma on MacBook Air M1 A2337

You can try the command below, worked for me on a test machine (M1 Pro) yesterday running 15.3 :

sudo softwareupdate --fetch-full-installer --full-installer-version 15.4 --launch-installer -R

Good morning, ren1018. The only way you'll be able to get 15.4 on the device is if you Restore via DFU mode utilizing the Apple Configurator 2 application on another compatible mac. A restore as you may already know wipes the device, so make sure to backup your data is you go this route. Otherwise, wait it out for the next incremental.

Join the club. I'm assuming you're attempting to update from 15.3.2? Resource thread started by KirillRP

It seems the only way to get your device updated to 15.4 is to erase your mac and reinstall Sequoia from recovery OR Restoring your device via Apple Configurator (DFU mode). There's a 15.5 Beta version available if that's of any interest.

Gotcha. If you must have Sequoia on the system, then your best bet is to install a later version (15.3.2). I was able to update a client yesterday successfully who was in the same boat as you. Just run the terminal command below to fetch the installer. If the command works successfully, the installer will be available in your Applications folder for manual launch.

softwareupdate --fetch-full-installer --full-installer-version 15.3.2

Thanks darrieus179. I successfully updated to 15.3.2. It took a long time for my 2021 M1. Will attempt 15.3.4 later.

I am seeing the same issue with a user here. Upgraded from the latest macOS Sonoma version to 15.3.2 but now can't upgrade to 15.4.