Samsung Galaxy s23 ultra stuck in bootloop

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My sibling handed me their phone to see if I could get it working again and the one odd thing I've never seen before is a phone brick in this way. I cannot get the device to connect to a computer no matter what I do, I've tried the download mode, all volume key/power key combinations and cannot get into any of those menus. The furthest the phone will go into a boot is the Samsung logo and sometimes show a blue screen with a Knox guard error. She was using the phone normally then for some...Read more