Setting up EM9291 Module

[jyijyi]

cdc-mbim is generic driver in linux, it is not from Semtech.

You can validate the module in Ubuntu linux PC.
If it works, then it is your raspberry pi board problem.

BTW, other user did not find problem on MBIM interface with Raspberry pi board:

Problems Getting EM9191 Working with M.2 to USB Adapters

Hello, Thank you so much for your help! With your guidance, I’ve managed to get the device recognized by the computer, which was a major step forward. It appears that pin 22 for VBUS_SENSE was key. Now, I am trying to get the EM9191 module to work on a Raspberry Pi Compute Module 4. When connected, it’s detected by the system and I’ve succeeded in connecting to the module’s serial interface, which is great. However, I’ve run into a challenge: although I can communicate with the module and even…