Just an update on this thread
I was never able to update my 210 so it will need to be serviced.
It’s a bummer because it is out of warranty but I have hardly ever used it.
It’s been unplugged for a long time.
It still works so I’ll probably leave it as is for now

My gear: Trinnov CI, 271, 8000.1(SEs), 7200.1 HC (SE), 320s, 3200s, Seaton F18 subs, MS200 (2nd zone), 218, 210.
Other: JVC RS-4100 projector, Lumagen Pro Radiance, Panamorph DCR anamorphic lens, Stewart G4 130 screen, Kaleidescape Strato K, Rvolution 4K player and Zapitti NAS, Oppo BDP-203,Roon Nucleus