Can't login past login screen after trying to update software

Akaimr Said:

"Can't login past login screen after trying to update software: When I login it loads little and it stops and say your computer restarted because of a problem ??? Before that I updated the latest software to macOS Big Sur from macOS High Sierra [...]the latest software didn't fully update it just kept on loading so I just stopped it and restarted the computer and try to login. Help"

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Reinstall the macOS:

Go Here: How to Reinstall macOS from macOS Recovery - Apple Support

Important: First, Back Up your Mac:

Create a Time Machine backup of your Mac, so that you can have something to restore your Mac from, should anything go wrong with the reinstall. Take this as a learning experience, knowing to always create a backup of your Mac, prior to making any major changes to it (i.e. update installation)

Akaimr Said:

"Can't login past login screen after trying to update software: Thanks for the message but I already tried many times it come with WiFi to connect but it doesn't connect to wifi ?"

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Use Ethernet:

On the computer, you connect it through Ethernet, going directly into your router. For a Mac (or PC) that does not have Ethernet, this would be the adapter to use: Belkin USB-C to Gigabit Ethernet Adapter - Apple

You are welcome. Please get back to us, letting us know if it works.