Since I install trinusVR and install steamvr , my VIVE is not work and always show error 400 .and error shared IPC compositor connect falied (306).
And I delete phonevr folder but it no influence .
And the steamvr HMD symbol is <H> , not VIVE. so I think maybe it uninstall not clean.
Deleting the phonevr folder should be enough to remove Trinus SteamVR driver (even though this driver should not affect others), you possibly have another issue there. I’d suggest re-installing SteamVR