Connect your headset to your PC
Connect your headset to your PC until you can see the output from SteamVR.
SteamVR setting
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Put file zy under Steam\steamapps\common\SteamVR\drivers
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Open SteamVR and navigate to Settings>Controllers>Manage trackers
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Set the Tracker Role to LEFT FOOT and close the tab. The circle here could be either green or red.