Error updating bootrom
Yd D7/EFI/APPLE/FIRMWARE/MBP91_00D7_B00created successfully Writing firmware update installed cookie (/Volumes/Mac SSD/mac OS Install Data/.
With the recent release of UCS 5.0 for Polycom VVX Phones automatic firmware updates are now supported directly from the Lync Device Update service.Apple had replaced my logic board but didn't install the newer firmware and so I could no longer boot off of my existing SSD drive (which was formatted with APFS, and had my original Mojave and all of my files). Boot off of Mojave on a USB, and plug in a new blank external hard drive, and install Mojave onto that.As part of the installation process, the firmware was installed. Boot the machine with an USB to install high sierra, by following the standard installation guide. Alternatively, you may use bless to update it manually, as long as the primary internal disk is there.But when trying to update the firmware for a few phones there is a new process which was introduced with the 4.0 release of UCS.This process allows the device to be manually pointed to a Polycom hosted web server distribution point on the Internet to download and install new firmware packages from.