BG95-M4 in ecm mode

I am currently working with the BG95-M4 chip, revision BG95M4LAR02A02, and I’m exploring the ECM mode with the AT+QCFGEXT=“usbnet”,“ecm” command.
I have managed to acquire the eth2 interface:

eth2: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 00:a0:c6:dc:ce:00  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Then i define my PDP context using the AT+CGDCONT=1,“IP”,“my_apn” command. but my registration to network failed :

+CREG: 0,2

It’s possible that I might have missed out on certain essential steps to ensure a connection setup in ECM mode.


Hi @hmaied
After configured APN, you need reboot module or AT+CFUN=0 then switch to AT+CFUN=1.