MacBook Air A2179 dead

[lincev]

Good friends, here again, I have this equipment that suddenly turned off and did not turn on again. It has no liquid damage.

Doesn't recognize in DFU mode

And the input voltage attached photo

any ideas? thank so much

 

[2informaticos]

20V/0.05A with battery connected?
Is it recognized in DFU mode?
Do you get all G3S voltages?

 

[lincev]

yes with battery
I have tried several times, cables etc in case I was wrong in the process and I have not achieved DFU.

Voltages:

P1V8G3S_DSCHG_EN = 0v
P1V8G3S_DSCHG_EN_ = 3,1v (sometimes 3,1 change 2,2 , 3,1 2,2 and after a few minutes stable at 3.1
P1V8G3S_EN= 0v
P1V8G3S_SS = 0v
P3V3G3S_EN= 0v
P3V3G3S_SS = 0v
P5VG3S_EN = 0v
P5VG3S_SW = 0v
PP3V3_G3S = 0v


etc...

I have been able to verify a slight heat in the IC T2 while it was connected for checks

 

[2informaticos]

Input ports stay at 5V, if no battery connected?