Macbook A1534 EMC2746 20v 1.33amps Black Screen

[zeydullak]

We have an Apple Macbook Pro A1534 EMC2746 which seems to be working as it uses 20V and uses amps to charge battery. It is not in DFU mode, we tried to connect it and Apple Configurator does not see it. We do not know how to proceed and trouble this case. Can you please advise?

please see attached photo of mainboard.

regards,
Zack

 

[2informaticos]

820-00045 board is know for bad CPU, as classic failure.
You can find many videos on Internet, about this problem.

Did you check USB activity?

BTW, there is no DFU; this is not T2 machine...

 

[zeydullak]

If there is CPU failure, is it fixable?

Also how to check USB activity? Thank you.

 

[2informaticos]

"You can find many videos on Internet"
Just search.
CPU reflow is the most used option; can last years, or days.

HOW TO collection

I hope this "How to" collection will help our members. I will possibly modify this post in time, if updates available. Trigger SMC_ONOFF_L (PMU_ONOFF_L): It reffers to simulate power button function, when the keyboard is not connected. We need to do this when we work with the board...

boards.rossmanngroup.com

 

[zeydullak]

Thank you very much.