Hello to all, iam Henry and from Germany

me and my wife own two Lenovo X1 Carbon Gen 6 Notebooks (20KH). One has working thunderbolt 3 port, the second one thunderbolt doesnt work and can only power on USB-C Port will charge the battery. The working device has a mfg date from 19/04, the machine with the not working Thunderbolt port was manufactured in 18/4.
Both units do have the same Winbond 25Q80DVNIG chip on the MoBo.

The Unit with the faulty Thunderbolt chip works normal, when i go to bios and disable the Thunderbolt device in the security section.
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