xxxxxxx8：The last one must be 8. 8 Representative MODEM
I want to set to single mode，00080000 (ECM).
Don’t know if there are other ways? Still have settings that I don’t know, thank you for your answer.
modem interface is the only interface that can’t be removed . it should be kept available, so that is normal that ERROR message is returned while running your command.
regarding such specific demand, please I suggest you use the following forum https://forum.sierrawireless.com which is dedicated to product itself, as the current one is for Legato topic;
Sorry, I have not logged in to the forum recently. Thank you for your answer