Dynabook Tecra PS579C-04K008 Sierra LTE Modem Driver 6.14.4316.0602 for Windows 10 64-bit Aug 31, 2021
... package contains the files needed for installing the LTE Modem driver. If it has been installed, updating (overwrite-installing) may fix problems, add new functions, or expand existing ones. Even though other OSes might be compatible as well, we do not recommend applying this release on platforms other than the ones ...