I'll make it short for this question... because there's lots of similar question with no-working answers.
I have used CV1 and bought an used Rift S yesterday. But I have Sensors can't track Headset problem.
(* It's written in Korean but anyway, it means Sensors can't track Headset, try to use another USB port something like that.)
1. MY PC SPEC
AMD Ryzen 5 3600 MSI B450M MORTAR (* NOT MAX MODEL) 32GB RAM GeForce RTX 2060 Super Windows 10 1909
So, basically I have enough PC spec for using VR
2. SYMPTOMS
(1) I can hear sound through Rift S
(2) Rift S lens shows 3 white dots with black background (like loading...)
(3) There's no OVRServer_x64.exe on Windows Setting - Privacy - Camera - Allowed Desktop Apps to access your camera (I saw some screenshot which shows OVRServer_x64.exe is there like screenshot below)
(but my system does NOT show anything in this list)
(4) USB port become extremely hot after trying to connect to PC
3. WHAT I'VE TRIED
(1) Completely uninstall and re-install Oculus App (tried to remove files left after uninstall, remove registry)
(2) Turned off and on for Camera settings in Windows Setting - Privacy - Camera
(3) Re-install Windows 10
(4) Turn off XHCI hand-off and legacy USB support from BIOS
(5) (As I'm using AMD Chipset) update driver for AMD USB 3.1 eXtensible Host Controller with USB XHCI... blabla driver (But it turned back after reboot, like nothing happened)
(6) Turn off Windows Defender
(7) Add OVRServer_x64.exe to Windows Firewall exception setting
(8) Turn off Power option for selective USB hibernate (It was already off)
As I can hear sounds from HMD and can see dots on lens, I think it is not problem of Rift S itself... So what should I do next?