820-00923 smc issue

[Kyle93]

Arrived with fans spinning fast and SMC issue in Apple Diagnostic.

U4402 was ripped off the board along with U5850. Fixed all the traces for U5850 but U4402 seems impossible. pads 6 and 7 are torn off with only the nittle nub remaining. These both only go under U3200

Is there any other way to try and fix besides soldering wire to little nub with U4402 on top? Tried several times but fans continue to spin fast with SMC issue

 

[2informaticos]

"SMC issue in Apple Diagnostic"
Is not SMC issue.
There should be an error code, to point what sensor is affected.
You can also run HWMonitor and look for strange temps reported.

 

[Kyle93]

PFM006

 

[Kyle93]

yes the battery was changed. When it first arrived it also had a power management system error PPN001

 

[2informaticos]

Possibly damaged trackpad flex/board, when battery was removed.