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820-2850 no wifi
- Thread starter grmacs
- Start date
Check L3401/3/4.
If all good, post U3401 voltages.
If all good, post U3401 voltages.
Any history available?
Connector pins look good?
Check diode mode on all PCIE data lines.
Be sure C3430/31 are good and check diode mode on boths sides of them.
Connector pins look good?
Check diode mode on all PCIE data lines.
Be sure C3430/31 are good and check diode mode on boths sides of them.
Last edited:
Let this one sit for a while being it was a cheaper mac and weird issue.
This WAS something stupid. Went back to look over some things and check connectors like you suggested and sure enough, while at first glance all looked good, poking around half of the pins were off the pads on J3401. Not sure if I looked at this board before I got the high powered scope but that thing has certainly paid for itself! It is at least seeing connection in system info, now just have to get it added back in the profile. Reloading OS. Not sure if there was an easier way. When I tried to add the service back in Wifi was not a possible selection. PRAM reset didn't work either.
This WAS something stupid. Went back to look over some things and check connectors like you suggested and sure enough, while at first glance all looked good, poking around half of the pins were off the pads on J3401. Not sure if I looked at this board before I got the high powered scope but that thing has certainly paid for itself! It is at least seeing connection in system info, now just have to get it added back in the profile. Reloading OS. Not sure if there was an easier way. When I tried to add the service back in Wifi was not a possible selection. PRAM reset didn't work either.