GL-X3000 Stock performance

Thank you. There are no errors on ifconfig.
I currently do not use the device until I have trust that it doesn’t ruin important Zoom calls.

With a Vodafone SIM and APN I am trying to switch the network operator from AT&T to Verizon (all same Vodafone APN). This works on a Smartphone. The router user interface AT command page, and

gl_modem

, does not wait for

AT+COPS=?

to finish. I use

socat - /dev/mhi_DUN
AT+COPS=?

to find the Verizon settings:

+COPS: (2,“AT&T”,“AT&T”,“310410”,7),(3,“311 490”,“311 490”,“311490”,12),(3,“FirstNet”,“FirstNet”,“313100”,7),(1,“T-Mobile”,“T-Mobile”,“310260”,12),(1,“T-Mobile”,“T-Mobile”,“310260”,7),(1,“Verizon”,“Verizon”,“311480”,7),(0-4),(0-2)

Trying

AT+COPS=1,0,“Verizon”,7

Does not change the network operator from AT&T to Verizon.

AT+COPS=1,2,“311480”

worked initially, doesn’t work anymore.
Where can I find “gl_modem” parameters and documentation please?

References:
AT+COPS Thread AT+COPS=? not working
AT Commands PDF: https://www.quectel.com/wp-content/uploads/2021/05/Quectel_RG50xQRM5xxQ_Series_AT_Commands_Manual_V1.2.pdf