The camera is functional. Unfortunately, it only takes landscape-oriented photos. When I try to take portrait-oriented photos, the camera freezes.
After I turn it off and on again, the camera works again.
Therefore, unfortunately, it must be sold as defective. I cannot determine whether it is a software or hardware problem. Perhaps the camera can still be recovered.
Only the camera in the original box is being sold, no accessories. No battery, no memory card, no lens, etc.