RM520N-GL Tethering come not come Cellular not show anything

imran_gazi · September 12, 2025, 8:52pm

Bean.Wang-Q · September 13, 2025, 11:26am

Please help check

AT+CEREG?
AT+C5GREG?
AT+QENG="servingcell"
AT+QMAPWAC?
A+TQCFG="usbnet"
AT+CGDCONT?

And please also show the device manager.
Just from the video it seems that it didn’t set up data call. Maybe it is not reigsterred or someting else like you didn’t see the APN.

imran_gazi · September 13, 2025, 1:02pm

Tethering come not Cellular firmware pass but not solved . At commend not workings
f

and AT command not workings

imran_gazi · September 13, 2025, 1:58pm

and Port auto refresh and plugging internet working .

Bean.Wang-Q · September 14, 2025, 2:21am

AT port is not working. You need to solve it first.
As I guess you might have modified the usbnet sometime. Or it is just a hardware problem.

imran_gazi · September 14, 2025, 9:51am

How do I fix this port? AT PORT

Bean.Wang-Q · September 14, 2025, 12:17pm

Do you have any other Windows PC? Is it the same situation.

imran_gazi · September 27, 2025, 7:46pm

yes this problem solved . i get