Why doesn't wifi work on macbook pro 13" 2012?

Question

WiFi

Good afternoon! At one fine moment, the wi-fi adapter stopped on macbook pro 2012 13".
"No hardware" - there is no adapter in the system report.
Did a smc and nvram reset - did not help. Replaced the adapter - did not help. Replaced the cable - did not help. The contacts on the motherboard are clean and not bent.I'm at a dead end - what could be the matter?Tell me where to look

Answer 1

Is this by chance after the update?

Answer 2

Same problem. Soldered a dlink whistle to 1 usb wifi. Put it inside the case. works but not very catchy.
I don't know how to fix it. Something on the motherboard. something to solder.
if you solved the problem - tell me how