Macbook Air 820-00165 not work from adapter and works on battery

[isc]

when AC adapter connected fan not spain and charging led turns to red without attaching battery , when battery is attached charging led go to green and macbook works ,when i remove battery mac still working , in other hand macbook boot up and ssd not recognized and cpu temperature is so high.
video describe the situation

video note: customer said that macbook falled down .

video her google drive

 

[2informaticos]

OK, so you get correct PPBUS_G3H on charger only.
Now check PM_BATLOW_L, 3V3_S5/SUS, PM_RSMRST_L, PM_PWRBTN_L, PM_DSW_PWRGD, PCH_DSWVRMEN.

Do NOT quote an entire previous post, visible few centimeters above.
Instead of cliciking "Reply" button, write directly in the reply box.
Please, maintain forum aesthetic...

 

[isc]

ALL TESTS ON AC ADAPTER ONLY


PM_BATLOW_L --- 0.03

PP3V3_S5 --- 3.33

PP3V3_SUS --- 3.23

PM_RSMRST_L --- 3.30

PM_PWRBTN_L --- 3.41

PM_DSW_PWRGD --- 3.41

PCH_DSWVRMEN ---- 3.23

 

[2informaticos]

"PM_BATLOW_L --- 0.03"
PCH cannot start power on sequence in this condition.
Are you using original Magsafe 2 charger?

Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L, at same time.
Try to start in SMC bypass mode also.

 

[isc]

Yes I use original charger and test other charger but the same situation
When I trigger SMC_ONOFF_L pulse of PM_PWRBTN_L drop from 3.41 to 0.34 but no boot up fan not spin

IT STARTS NORMALLY FROM BATTERY BUT NOT DETECTS SSD.
I APPLIED SMC RESET AND PRAM RESET BUT NOT BOOT FROM CHARGER

 

[2informaticos]

Check R1410 integrity.

 

[2informaticos]

Reball SMC; change it, if still low PM_BATLOW_L.

 

[isc]

Also PM_BATLOW_L control by pch may be cpu chip defective?
note: mac can boot from battery but ssd not be detected and temperature of cpu is very high and fan full speed spaining.

 

[2informaticos]

PM_BATLOW_L is controlled by SMC; PCH uses it as input.
An internal problem of PCH can affect this line, but is less probably.

Fan starts at full speed, or increases speed as CPU gets hot?
SSD is not detected at all in Disk Utility?

 

[isc]

Fan starts normally and rapidly go to full speed due to CPU gets hot.
I try more than SSD all not detected in Disk Utility and its works fine in other machine properly.

REBALLING SMC THEN REFLASH BIOS FIX THE PROBLEM

THANKS 2informaticos