Got it working again with a replacement power adapter... but only with the secondary USB-C port in the dock connector, not the primary charging port.
The Thunderbolt firmware issue probably took out the main charging port. It doesn't work as a charger, but does work as a USB port and recognized the USB ethernet adapter I plugged in.
I also updated BIOS and firmware with the Lenovo System Update utility.
charls lindbergh
in reply to charls lindbergh • • •justthenews.com/government/cou…
Federal judge orders Trump to temporarily return control of California National Guard to Newsom
Misty Severi (Just The News)