EM9190 not being detected in Linux Ubuntu 20.04.5 EM9191 EM7690 5G dev kit

[jyijyi]

did you see any new message in dmesg when you plug in the usb of the module?
e.g. something like the followings:

usb 2-2: new SuperSpeed USB device number 2 using xhci_hcd
usb 2-2: config 1 has an invalid interface number: 4 but max is 3
usb 2-2: config 1 has no interface number 2
usb 2-2: New USB device found, idVendor=1199, idProduct=90d3, bcdDevice= 0.06
usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-2: Product: Sierra Wireless EM9191
usb 2-2: Manufacturer: Sierra Wireless, Incorporated

have you checked the PCIE_DIS pin?

PCIE_DIS signal in EM9190

The EM9190 product technical specification defines a PCIE_DIS signal that allows selecting the host interface type (unconnected/low for PCIe, high for USB). Given that the default is PCIe, does this mean the EM9190 cannot be used with the USB host interface on already existing hardware platforms where the corresponding pin is currently unused? E.g. is it that a system that already supported EM7455 modules will not be able to use EM9190 modules due to the wrong PCIE_DIS signal input?