Hi, I got a mid 2012 Macbook Air and followed Anson Alexander's video to install macOS 15 Sequoia. Everything went well until I get "an error occured preparing the software update" notification. It appears after thr install has been going on for a while. The laptop isn't connecting to wifi anymore, it's on, but it can't find any networks to join. Wifi works fine on my phone and desktop computer. I tried restarting the laptop and I get the option to install Sequoia again, but the error notification pops up again after a while.
I'm not at all handy with tech, I just followed the instructions on the video, so I have no idea what to do. I'd be so happy if someone could help me fix this! I need a laptop for studying, but can't afford a new one so getting this ancient thing to work would make my life much easier. Can somebody help me please?
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