After the September security update, quick charge is no longer working. It seems to have been disabled which has also caused other USB issues (non usb issues).
-can't connect to laptop
-can't get phone into recovery mode
I was originally told it was my usb port but that's all clean.
I've tried charging with a friend's power delivery charger & fast charging works.
This is a software issue. I know others have this issue too. So I thought I'd share.
If anyone knows how to get to the attention of Samsung engineers please advise.