820-01700 - No Wifi

[ClerkenwellMacs]

Have a liquid damaged 820-01700

No wifi hardware detected within OS, liquid damage around U3730.

Are there some base requirements for the Wifi to be detected, nothing looked like it had gone.

Thanks!

 

[ClerkenwellMacs]

That was the extent of the liquid on the board.

 

[macfixer]

Replacing the corroded/damaged looking components is first step, then check if you have wifi again

 

[2informaticos]

Clean the affected area and rebuild all traces, if needed.
Also replace components.

 

[ClerkenwellMacs]

I have replaced all the components to the bottom and right of the Wifi chip, traces are all fine. Still nothing unfortunately.

 

[2informaticos]

WiFi chip may be damaged because of leakage from power rails to data lines; caused by liquid spill.