820-00928 Touch Bar not powering on

iClub

Member
This mac suffered oxidation in the u3900 region, I deoxidized it, replaced the damaged components, it worked perfectly. The customer decided to install macOS Monterrey and had Update Critical. I was able to update the macOS only when I unplugged the Touch Bar. Now the Touch Bar doesn't work at all, could you help me?
 

iClub

Member
I tested another Topcase with TouchBar and used the external monitor, but the Bar didn't work.
 

iClub

Member
I used another Topcase, installed the system over the internet, but it shows a critical software update. I don't know what else to do, what's left is to inform the client that the Touch Bar will not work.
 
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