Hi here are the things that ive tried so far but to no avail:
changed the USB-c cables
made sure that the cable works for other phones.
Turned on USB Debugging on developer options
Wiped cache partition
installed Samsung ADB drivers
Cleaning the port.
tried it on another pc/ laptop
here are some signs/problems that I've found.
This happened after I updated my Phone thru a System update
>My device fast charger included in the box stopped working. but other aftermarket USB-c cords are working but only charging not file transfer
>when connected to a USB 3.0. Sound notifications from the PC would be heard. checking the Device Manager I would see Unkown USB Device (Device Descriptor Request Failed)
>When I try to insert the USB cable to the phone (without putting the other end in a PC or a Laptop) it automatically says "The connected USB Device isn't Supported"
please help me.
Thanks for reaching out. This forum is for support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: https://www.samsung.com/us/common/visitlocationsite.html