Fixes for the most common Yealink MCore Kit problems, from the quickest checks to when to contact Yealink. Start at the top: most issues are a setting, a cable or firmware.

What the MCore Kit has
Check the problem against what this model actually has:
- Platform: Microsoft Teams Rooms on Windows; Copilot integration
- Controller: MTouch Plus touch panel
- In the box: MCore mini PC and MTouch Plus touch console
Quick checks
- Restart the device: unplug power for 30 seconds, then reconnect.
- Reconnect the cables, using the ones that came in the box.
- Update the firmware. How
No picture on the displays or the room app won't start
- Check each display cable and the display inputs.
- Restart the unit from the touch controller, or by removing power for 30 seconds.
- Check the room account can still sign in (expired passwords and licenses are common causes).
- Apply pending OS and room software updates.
Camera or audio missing in the room app
- Reseat the USB cables at the unit; use the ports the manufacturer recommends for cameras and audio.
- Check the default camera, microphone and speaker in the room app's device settings.
- Restart the unit.
Keeps disconnecting or drops out
- Use wired Ethernet rather than Wi-Fi, and check the switch port for errors.
- Update firmware.
Won't turn on or status light is red/blinking
- Check the power adapter is the original one and firmly connected, and try another outlet.
- Unplug for 30 seconds and power it back on.
- Check the status light meaning in the user guide; a blinking light during startup or updates is often normal.
- If it never finishes starting, contact the manufacturer's support for a recovery.
When to contact Yealink
If none of this works, the device may need warranty service (Yealink warranty: 24 months for Teams Room Systems, Collaboration Bars, BYOD kits, USB room cameras, VC room systems, Zoom Room kits and Meeting Boards; 24 months for personal speakerphones/headsets/USB cameras; 12 months for SIP and Teams desk/conference phones). Open a case on Yealink support. Bought from us? Contact us and we'll help with the claim.
More MCore Kit guides
- MCore Kit buyer's guide: specs and price
- MCore Kit: setup guide
- MCore Kit: Teams, Zoom and Google Meet
- MCore Kit: price and total room cost
- MCore Kit: full specs
- MCore Kit: alternatives compared
Related guides
Outfitting several rooms, or reselling? Get a volume quote or apply for wholesale pricing →






