My MacBook Air ( Mid,2012) freezed

Dear people,

I followed a tutorial to install macOS Big Sur on my unsupported MacBook Air (Mid,2012). Everything was fine and I managed to install but when I wanted to sign up with my iCloud the screen freezed. You can see it in the picture, it says “configurate account“ and it is constantly loading. I am grateful for any help.

kind regards

submitted by /u/Cold_Potato_9761
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