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Article ID: 000026994
Last Modified Date: 05/15/2021
Access Level: Public

Blackwire C510/C510-M/C520/C520-M Firmware Release Notes

To upgrade firmware for this device, upgrade to Plantronics Hub 3.9.2 or better.  Prior versions of Plantronics Hub will not be notified of an upgrade for this device.

Version 159
Resolved Issues
  • Resolved issue that would unmute Cisco Jabber call when ignoring incoming Skype for Business call
  • Correct volume adjustment steps on Blackwire 510
Version 155
Resolved Issues
  • Fixed issues to improve caller experience
Version 147
What's New
  • Added audio protection feature
Version 135
What's New
  • Miscellaneous bug fixes and improvements
Version 128
What's New
  • Added 44.1 kHz playback audio sampling rate and removed 24 kHz playback audio sampling rate 
  • Improved compatibility with Macs so that the microphone audio channel does not remain open
  • Updated USB PID