QUECTEL EC20 4G LTE Cat3 Module User Guide

QUECTEL EC20 4G LTE Cat3 Module

1. Connect the USB port Take EC 20 a s an example ) of the module to the Windows via jump wire Jumping wire is necessary when there is no development board of Quectel
   Contents:

   • The USB _V BUS is connected to the red cable in USB
   • The USB_D M is connected to t he white cable in U S B
   • The USB_DP is connected to the green cable in USB
   • The GND is connected to the black cable in USB

2. Connect to Windows install module driver in Windows For more details, refer to Quectel_LTE 5G _WindowsUSB V x.x

3. After the in stallation is successful bootth e module, you can view the foll o win g ports o n the PC device manager.

4. Laterly, open the tool on Windows : the la test version of LTE_QWinLog Select the U SB_DM port only and keep others remaining. For Config file , please solicite for the Quectel party.
   Note: If it is hard to reproduce the Issue or an extraordinarily long time to capture log. In this situation, please erase the” ” in save log data into single file, then configure the size of a new file.

   • No tick to the save log data into single file, then multiply files ill be generated in accordance with configured bytes.
   • Tick to the save log data into single file, then generate a new file
     That means if it is configured as 100MB, A new file will be generated spontaneously when the size of the log file is up to 100MB, then start to generate next file.
     

5. Click the “start” to capture log, then the mcu starts to send command to module for dial-up.

After the issue reproduces, deliver the captured log file (.bin/.qmdl) to engineer of Quectel.
Note Required)

1. 1. Before capturing the log, please add execution command-AT+QCFG= “DBGCTL”,0 in mcu. If it is available to return “error and “OK”, the “error” indicates that it has been opened by default, just ignore it.  

   When Confronting with network issues such as no access to network or failure to activate, click the “start” to execute.
   AT+QCFG= “DBGCTL”,0
   AT+CFUN=0
   AT+CFUN=1
   Above three commands can be sent by USB AT port or main serial port, then reproduce relevant issues.

2. After reproducing the issue, it is a must to last one more minute when capturing, taking into account the contexts.

3. Record the time at which the issue reproduces, and keep in mind that the time must be accurate to the second.

4. Name the issue when saving log.

5. Make sure the log is effective when capturing, check the size of log file, which should be with the quantity of above MB.

References

• IoT Modules, IoT Antennas and Certification Services | Quectel
• IoT Modules, IoT Antennas and Certification Services | Quectel

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