The problem was solved by Purism service in Germany.
I followed the instructions for emailing support.
From my first contact with support (Mr. Mladen Pejakovic) to the arrival of the device from the service, 42 days passed, counting more than 15 days of shipment and the fact that during communication I myself was several days late with the answers.
We started communication on Oct. 25 and ended on Dec. 8, and we exchanged 24 messages that contained: Description of the failure, attempt to detect the failure, attempt and proposal to independently change the Wi-Fi card and cables, sending and tracking the shipment to the service, thanks for the support…etc.
Although I was warned that the service process would take a long time, the device arrived earlier than I expected.