Raspberry pi3b: No Wireless LAN interfaces found

[Francesc V.]

Hi:

I've just bought 5 faulty Rpi 3 model B. All of them works with LAN, but no WLAN are detected (no wifi).
The SD I am using is the one where other RPIs work perfectly fine.

Could it be a hardware topic and not a software topic? If so............which part of the RPI 3b is manages the Wifi part?

Regards,
Francesc.

[stj]

go to the pi site and you can download the schematics.
you can also check the bootlog to see if it detects the wifi interface or not

[Francesc V.]

Thanks for the feedback, stj.

Time for silly questions:

I am starting to thing that nothing is wrong with these 5 RPIs. All of them are RPI model B v1.2.........If I see the image I don't see any "wireless" chip.




Whereas for the RPI model 3 B+ 1.3 there is (the raspberry chip).




What do you think?


I guess I am going to solve it with a 2€ Wireless dongle.


Regards,
Francesc.

[stj]

lets check my stash of pdf's

[Francesc V.]

Then I guess that BCM43438 WiFi on board is gone...............and to fix it would mean to replace BCM2837 64bit Quad Core Processor, right?

[stj]

maybe it's the antenna,
or maybe the version of Linux you used isnt right or isnt configured for the chipset
i have the same card i think and it can run 64bit but most people use an older 32bit build on it - no idea why.
have you checked the bootlog for messages related to initialising the wifi?