820-00850 No image on the touch bar

yobad

Member
After a drop, no image on the touch bar, but the touch is still working.
Also, I can't install the os, is giving me an error.
 

yobad

Member
When i click update it try to update then i get error message again.
 

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2informaticos

Administrator
Staff member
This is the classic Touchbar issue and you can find a lot of info on the forum.
Use search function and collect data from different threads.

Disconnect internal LCD and test the machine with external monitor.
You can also disconnect camera connector from the shell only.
 
Last edited:

yobad

Member
I disconnected the camera connector, internal screen, touch id, always no image on touch bar.
i reflowed T2 chip, UB00 same problem...
 
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