I have installed the Dell DW5811e (EM7455) M.2 Cat 6 LTE modem and it is not recognized by the USB hub/host.
Does Pico Pi motherboard (and also the Lyra Pi) support only the Waveshare SIM7600G-H M.2 card ?
non-SIM7600 M.2 4G card for Pico Pi.
The pin definitions, power requirements, and drivers differ among various M.2 4G modules. If the PID of the DW5811e cannot be recognized using lsusb, it indicates a mismatch in the interface or power supply.
I have found the root of the problem, the EM7455 4G modem uses USB3.0 M.2 pins which are not routed on the Luckfox board
(the published Waveshare SIM7600G-H pinout was very helpful). It is possible to switch from USB3.0 to USB2.0 use on EM7455
but my firmware is old and does not support the AT!USBSPEED=0 command. For some reason the firmware update to a more recent
version failed, so i will look for another EM7455-based board with newer firmware version and report on it.