Problem updating display firmware to version 17
Suggestion:
After updating my MacMini M2 to Sonoma, another update for the firmware for the display was requested. This update attempted at least 6 times and continued to not install. I attempted to screen share into the Mini but was unable to establish a connection to it. I unplugged an external Lacie USB-C hard drive from the display and the next time the update attempted, the update was successful.
I suggest removing any external USB devices from the display prior to updating firmware.
Studio Display