820-3437 ASD Failed on VP0R

[ajdoc]

Small liquid damage near SMC.
It works but ASD test failed on VP0R.

Q5500/2 0.054V (sometimes there is even 0.215V but slowly dropping)
Q5500/3 0.010V
Q5500/4 8.15V
Q5500/5 7.03V
Q5500/6 6.10V

Replaced Q5500 just in case but still SMC_SENSOR_PWR_EN is low.
I see that line coming from SMC...

Any idea how to solve that?
Thanks

 

[aprendiz]

Check U8050 area for water damage, other than that, crap/corrosion under SMC, apply some flux to SMC and heat, about 170°C.......

 

[ajdoc]

U8050 clean, used flux on SMC... still same issue - just dont tell me SMC needs to be replaced

 

[aprendiz]

ok i'll stay quiet...... but you know what to do...

Maybe you could try reballing but is the same shit than replace....

 

[2andrewd]

Spotted a pre-balled on eBay recently.

 

[dukefawks]

What has U8050 to do with this? Problem will be corrosion on Q5500.