I noticed my camera started to faile when the outside temps dropped below 50 degrees F. The camera app would open, but I would get a blank black screen as if a lens cover was on the device. I ran a few tests indoors using a infrared temp scanner and the internal temp sensors on the S9. The camera on the phone stops working below ~18 degrees C / 60 degrees F.
So if I am out fishing, skiing, hunting, or hiking, the phone must stay in my pocket for body temp to keep the lens and internals above 18 C. I also tested with an extended battery case which keeps the phone warmer, but the lens is still exposed. Similar results with failed camera at cooler temps. I would expect this at sub freezing or approaching 0 C, but at less than 18 C, this should not be an issue.
Is this a problem with my phone or has anyone else experienced this? Considering going to Apple next as my S6 active battery expanded swelling the case on a wireless charger, forcing my hand to upgrade to S9, now another hardware issue. Just bad luck with Samsung.