My s21 is showing a white screen when I'm in normal zoom mode on rear camera but works very zoomed in or out. It happens from 1.0x to about 3.9x or 4.0x. I had the cameras replaced and this didn't solve the problem.
This could be a possible software issue, try creating a report to SSM and they should help you resolve the issue!
Submit an error report after replicating the issue
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