820-3115-B A1278 Shutdown problem

[tipoti]

hi,

820-3115-B A1278 start on , charging, but Turns off after 2-3 minutes while watching videos on youtube


I just tried with the disk inserted = shutdown
Only battery testing = shutdown
Only hdd and trackpad = shutdown

Only charger without battery = Device turns on, apple logo shows up but during loading screen it black screen after 1 minutes fan stop and
The white LED on the front is flashing

as if in sleep mode

 

[2informaticos]

Disconnect BIL and try again.
Be sure SMC_LID signal is steady high.

 

[tipoti]

BIL connection not installed - connector not plugged in

SMC_LID = 3.4 volt poweron
SMC_LID = 3.4 volt power off

 

[2informaticos]

Test one RAM module at time.

Clean ME region in BIOS; if doesn't help, try full known good BIOS (clean ME, of course).

 

[tipoti]

same

 

[2informaticos]

Try to run ASD; see if turns off too.

 

[tipoti]

 

[2informaticos]

Board fails sleep/wake tests.
Could be something bad from SD card, or thunderbolt area.
Inspect for corrosion and disable their wake signals.

 

[tipoti]

hi,solved
corrosion