820-2915 No wifi

[jgraffis]

i got this 820-2915 that boots and runs awesome but shows no hardware detected where the wifi symbol is. i check the inductor L3404 and have 3.32v on both side when the card is connected.
Not really sure where to go first on this thing.

i did find that a couple resistors measured a little low.
R3454 156.9 kohms
R3455 72.5 kohms

 

[dukefawks]

First thing is to swap the cable/card of course.

 

[jgraffis]

yep. did that before checking resistors. 10 seconds after posting here i noticed 11 components missing that all seem to go to cpuvcore, replaced them from donor had to run 3 wires. Looks like some one slipped with a screw driver or some shit. will test in the morning.

Surprised this computer still worked like that.

 

[jgraffis]

might as well close this thread this board is going in the donor pile. ty

 

[dukefawks]

Send it to Apple and claim it has GPU issues. Insist and bitch at them and it will be replaced.

 

[jgraffis]

lol was thinking about that thanks.