CP900 is bricked after upgrading VC210 FW to 118.15.0.23

[sswinford]

I also encountered this problem after upgrading the firmware on our brand new VC210. Not a very good first impression with firmware bricking half of your setup...

When I was about to contact support, I did find this article on the CP900 Recovery Mode: http://support.yealink.com//faq/faqInfo?id=833

Basically, hold the power and volume down keys to power it off, then press them again to boot into recovery mode. You can then upload the latest firmware back onto it.

Plugging it back into the VC210 will cause it to go back to recovery mode

So for now I grabbed a spare USB power adapter that I had laying around and am using that to charge the CP900. It seems to be working fine over bluetooth audio.