Hi,
This is my first post asking for help, but I feel I have now reached a point where I am out of my depth entirely.
820-01814-A board model, purchased with knowledge it was faulty and had water damage that had affected the touchbar. Water damage was located around the touchbar connectors to the point there were open circuits. When turned on the touchbar would light up, but the entirety of it was scrambled colours and pixelation.
I replaced the topcase (wasn't comfortable doing a touchbar swap) expecting this to be a simple issue of an open circuit, but...
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