Router does not see EC200T

My router is on Qualcomm QCA3533 v.2 rev.0 processor
worked great on Quectel EC25!
I replaced it with Quectel EC200T the router now does not see the module.
How do I get it to work?
The instructions say that these modules are interchangeable.
Maybe he needs special AT commands to activate QMI mode?
Thanks for the help!

  1. Does EC200T have set up data call firstly?


  1. Use dhcp client (eg. udhcpc) to send dhcp request.

busybox udhcpc -i usb0

3.Normally the script of udhcpc would add the usb0 into the router. If not , you can add it by yourself.

route add default dev usb0