Macbook A1466 820-00165

[Instafixx]

Customer Saying that the Macbook had crashed . He tried restoring but the machine turned off.

Now when it came to me I don't get anything on screen. PPBUS is 8.6. 3v42 present. PM_SLP_S4 present. Fan spin is normal. Drawing 500-600 amps.

Thermal cam shows U2800 and U7400 very mildly heating up.

 

[2informaticos]

Do you get voltage on all big coils?

 

[Instafixx]

Yes

 

[2informaticos]

PLT_RESET_L goes high?
Tried known good BIOS?

 

[Instafixx]

PLT_RESET_L goes high.

Tried BIOS too.

 

[2informaticos]

Did you test the board disconnecting LIO flex?
Checked for USB activity (both ports)?