I installed the firmware also i installed Luci onr mr6400.

I plugged my sim to the router sim card slot. The question how to configure it?

I clicked on edit “WAN” interface. I had the bellow:

config interface 'wan'
    option proto '3g'
    option device '/dev/ttyUSB0'
    option service 'evdo'
    option apn 'APN-ADAATCS'
    option ipv6 'auto'
I don’t know if the device is correct but i had to choose this because of my option ifname was before 'usb0’
This modem come with a sim card slot. I don’t have password for APN or nothing. But it seems it is not connecting.