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The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
HP Recommended
How can a user prevent a Poly Trio C60 being downgraded or upgraded from their desired software version when using a Microsoft Teams Room / MTR
 
A customer wanted to use a Poly recommended software when using a Poly Trio C60 with an MTR as a speaker and microphone or in daisy-chained mode
 
Use the attached configuration and import it via the Web Interface prior to connecting the USB cable to an MTR Utilities > Import & Export Configuration > Import Configuration
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!-- USB Downgrade via MTR -->
<!-- https://jira.poly.com/browse/VOICE-67125 -->
<PHONE_CONFIG>
	<ALL device.set="1"
		device.prov.msrDeviceUpdatePath.set="1"
		device.prov.msrDeviceUpdatePath=""
		feature.usb.device.msrSoftwareUpdate="0"
	/>
</PHONE_CONFIG>
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Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
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