Happenned to me. S22 ultra. Had to freeze phome every time to bring it to download mode ( press vol down +power and get to download mode if bricked. Freeze till it reacts to pressing) and use ultfone android repair program that eventually unbricked the phone. Took lots of trials and lots of freezing for 30 minutes to few hours or 24 hours and letting phone rest when it bricked again. So I backed it all up. All files, and now I at least have the data. Every lab said it was motherboard and that saving data will cost like the most expenaive new phone. But only freezing it and letting it rest sometimes for days, and freezing each time I wanted to charge it or wake it, worked. So do not despair.
Samsung did not helped. Only suggested their lab would factory reset it without saving data. They did not care. Went back to my old note 9. Next phone will not be samsung and will have micro sd for saving data. Never again.
And only connect phone to back usb of pc for backup or for ultfone. First try without ultfone if not bricked.
First wipe cache partition if not bricked or if ultfone made it unbrick. Only then backup. Freeze each time phone gets stuck while backing up, or wait patiently since it sometime gets back to working after it restarts on its own while backing up to pc. Ultfone might also help with deleted data
