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A1932 turns off

C

crea2k3

Member
Have a MacBook Air a1932 in that boots ok, stays on for 1-2 mins, the screen goes black, then a few seconds later the macbook turns off.

In diagnostic mode no faults are found, it will happily stay turned on in this mode.

if I put it in system restore internet recovery it boots into the UI and then turns off a few seconds later.

have managed to get it on for long enough to run coconut battery,

It does the same thing when running on power cable.

Opened it up and can’t see any liquid damage etc.
 
2informaticos

2informaticos

Administrator
Staff member
What board code do you have?
OK, your reply appeared after I sent my post.

Client should say something about how the fault appeared.
Inspect audio board and flex for liquid signs.
 
C

crea2k3

Member
They said
“Hi I have a macbook air which keeps shutting down unexpectedly. This can be only after a couple of minutes and when doing low intensive work like writing an email. “

Iv taken the board out and inspected it under the microscope on both sides and don’t see any water damage at all or anything else remarkable.

have checked all flexes and see no signs of liquid at all
 
C

crea2k3

Member
If I hold D and go into diagnostics it stays on, if I boot into option R recovery it goes off after a few seconds once booted. If booted normally it goes off after 1-2 mins.
 
2informaticos

2informaticos

Administrator
Staff member
Read this

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 boards.rossmanngroup.com
and follow all the steps from DFU tutorial linked there.
 
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