Apple Macbook Air A1466 820-3437 No WiFi, No Ethernet

[KappaDev]

Hi all, I have a bit of a strange one.
I have a Macbook Air (board model 820-3437) with WiFi showing no networks and missing device in network settings. However, Bluetooth functionality does appear to be working (as I assume this is over USB protocol). I've attempted checking with several different USB WiFi dongles w/ their respective drivers, an OS reload, a thunderbolt ethernet adapter, and 2 different USB ethernet adapters, none of which seem to go online. Other devices on the network are working correctly. This is on a fresh install of macOS Big Sur.

No visible corrosion on either side of board.
WiFi card connector (J3501) clean with no corrosion inside either.

PP3V3_WLAN - 3.4V
PP3V3WLAN_VMON - 1.04V
AP_CLKREQ_Q_L - 0v
AP_RESET_L - 3.2V
AP_RESET_CONN_R_L - 3.3V
SMC_WIFI_PWR_EN - 3.4V

Resistors around U3540 seem clean.
Anyone encounter this before?
Thanks.

[dellxps15]

Re: Apple Macbook Air A1466 820-3437 No WiFi, No Ethernet

check carefully if j connector pins are solid or if they move.

[KappaDev]

Re: Apple Macbook Air A1466 820-3437 No WiFi, No Ethernet

check carefully if j connector pins are solid or if they move.

All pins at connector appear solid. No movement with force from pushing with tweezers.