Question

How to collect initial diagnostics data for Gosuncn ZTE WeLink cellular modules when requesting technical support?

Solution

Solution: In order to troubleshoot and solve a technical problem, we ask you to please provide information about your system and logs from the related cellular module when creating a technical support ticket via Techship.com.

Include a problem description of what the exact problem is and in what precise situations it is present/occurring.

Describe the host system:
-Hardware (system board, peripherals...)
-Operating system and detailed versions (E.g. Windows, Linux release, kernel...)
-Drivers and driver versions

Identify the precise details of the cellular module found on the product label:

• Model

• P/N code

• Serial / IMEI number

• Network provider

If you are running on a Linux-based system, please capture the terminal logs below:
uname -a
lsusb
lsusb -t
ifconfig -a
ls -l /dev/serial/by-id
ls -l /sys/bus/usb-serial/devices
dmesg

The log output requested from the commands below can be acquired from the module by accessing one of the USB enumerated serial (COM) interfaces accepting AT commands. (In Windows this is generally found listed as a Modem interface or AT commands serial interface in the device manager and in Linux it is usually found on some of the /dev/ttyUSB* interfaces). Send the following commands to the module to capture the text output and include them when creating the technical support ticket.

Enable input command echo:
ATE1
Request general vendor, type, and unique ID about the module:
ATI
Enable verbose error reporting:
AT+CMEE=2
Firmware version:
AT+CGMR
Sub firmware version:
AT+ZVN
IMEI Code:
AT+CGSN
USB endpoint configuration:
AT+ZSWITCH?
AT+ZADSET?
Operational mode:
AT+CFUN?
Allowed network bands:
AT+ZBAND?
List network operator info:
AT+COPS?
Network registration status:
AT+CREG=2
AT+CREG?
AT+CEREG=2
AT+CEREG?
Signal strength:
AT+CSQ
AT+ZSRSP?
Serving network & cell information:
AT+ZCELLINFO
AT+ZCDS?

Network Selection configuration and order:
AT+ZSNT?
AT+ZSNTE?
Service domain status:
AT+ZPAS?
System info:
AT^SYSINFO

List APN details:
AT+CGDCONT?
Show APN authentication details:
AT$QCPDPP?
Attach UE to default PDP Context:
AT+CGATT=1
List PDP profiles status:
AT+CGACT?
List default bearer and data connection details:
AT+CGCONTRDP
List IP addresses:
AT+CGPADDR
Show data call and host data ECM interface status:
AT+ZECMCALL?
Show chipset temperature:
AT+ZCHIPTEMP?
List configured temperature limit:
AT+ZTEMPCTRL?

The support ticket can be created after login at: https://techship.com/technical_support/