MacBook Pro A2442 unrecognised test mode

[ielectron]

Hi everyone,
Does anyone seen machine in mode like this ? `I haver tried battery disconnecting - no luck.
The screen was replaced recently on it I have swap IC's as its the A2442 it was working fine for a few months.

20240806_111318.mp4

drive.google.com

Thanks

 

[2informaticos]

Did you test with known good LCD assembly?

 

[ielectron]

I did not tired a screen as once machine boot and show to "test" it look correct. Also while doing this test showing me a normal display on external screen

 

[ielectron]

its test like from this link going over and over again :

 

[ielectron]

Any ideas why this machine is displaying this test screen ?

 

[2informaticos]

"Did you test with known good LCD assembly?"