====== Operations｜VIVE trackers are not recognized even after powering them on ======
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This page is troubleshooting for situations like "VIVE Tracker is not being recognized after it being turned on."
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Depending on how may trackers you use, the attaching position will change.\\
For details, refer to [[en:virtualcast:controller:vivetracker|Using VIVE Trackers (full-body tracking)]].
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===== First, be sure that they really are not recognized =====
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"Trackers are not working!" or are they? Let's check if there really is a problem with the trackers.
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Check the following:
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1. **The color of the status lights on the controllers**
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2. **The controller icons on VR Status Monitor**
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3. **The models of the trackers that can be seen in HMD when you are on the title screen.**
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{{:en:tips:faq:trackerproblems.jpg?400|}}
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When you recognize the symptoms above, try the methods below.
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===== Connect with a cable =====
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{{:en:tips:faq:trackerwire.jpg?400|}}
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If a tracker is not recognized, first connect it with a cable to let the PC recognize it. Just like the controllers, trackers can be connected via Micro USB.
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{{:tips:faq:faq19.jpg?direct&400|}}
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If you see the tracker icon on the VR Status Monitor, make sure the dongle is connected successfully with the PC and <wrap hi>try to connect wirelessly again. </wrap>
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Now, turn on the tracker again and see if it connects. If the tracker is not paired after turning it on, try the method below.
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==== Pairing =====
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{{:en:tips:faq:pairtracker.jpg?400|}}
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Open the VR Status Monitor and right click on the tracker icon, which is not lit. Select [Pair Tracker] from the menu. Now you see the [Controller Pairing] window
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{{:en:tips:faq:trackerhold.jpg?400|}}
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<wrap em>After confirming the tracker is turned on</wrap>, <wrap em>long press</wrap> the power button. After about 3 seconds of press, the status light on the tracker starts to blink, indicating that the tracker is in <wrap hi>pairing mode</wrap>.
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After a successful connection of the first tracker, connect other trackers in the same manner as well.
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{{:en:tips:faq:trackerslit.jpg?400|}}
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When you see all the tracker icons lit on the VR Status Monitor, the pairing of the trackers is successful. On the [Controller Pairing] screen, click on [Done] to close the window.
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Now let's set up the trackers properly. On the VR Status Monitor, right-click on a tracker icon and select [<wrap em>Manage Vive Trackers</wrap>]. You will now see [Manage Trackers] window.
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{{:en:tips:faq:selectrole.png?400|}}
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<wrap hi>Initially, the role of trackers are set to "Held in Hand." Change the role to "Disabled." </wrap>
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Click on [Held in Hand] right to the [Select Role:] to open the selection menu and select [<wrap em>Disabled</wrap>]. Apply this setting to all of the trackers.
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{{:en:tips:faq:manage_trackers.png?400|}}
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After changing all trackers to "Disabled", restart the SteamVR to apply the settings properly. Open the menu on the VR Status Monitor, Select [Device] > [Restart headset].
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After SteamVR is rebooted, turn on the power of the trackers. They should be paired properly now. If they are not paired, try the method below.
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===== When I cannot pair trackers =====
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・<wrap em>Tracker icons on VR Status Monitor is not lit even when the status light on the trackers are lit green.</wrap>
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・<wrap em>The status light and the VR Status Monitor indicator is lit, but I cannot see the tracker inside HMD.</wrap>
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・<wrap em>Pairing doesn't work at all.</wrap>
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If you encounter symptoms like these, we recommend you to <wrap hi>turn off the power of the trackers and restart SteamVR</wrap>. As mentioned above, connecting a tracker and a PC with a wired USB may allow you to pair the device. But disconnecting the wired connection might break the pairing. It is recommended to start from a fresh state right after restarting, which prevents future issues as well.
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If the steps above do not solve the pairing issue, <wrap em>restart the PC and try pairing again. </wrap>
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