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3.
Install and then use QCOM provided by Quectel to realize the communication between the module
and the PC.
The following figure shows the COM Port Setting of QCOM: select the correct "COM Port" (USB AT Port,
which is shown in figure above) and set correct "Baudrate" (e.g. 115200 bps). For more details about
QCOM usage and configuration, please refer to document [2].
Figure 34: COM Port Setting Field on QCOM (USB AT Port Connection)
4.3. Firmware Upgrade
Firmware of the module is upgraded via USB port by default, and there are two methods for the upgrade:
emergency download and normal download. Please refer to the following procedures to upgrade firmware
through the EVB.
4.3.1. Emergency Download
1.
Install the firmware upgrade tool QFlash on PC.
2.
Connect the EVB and the PC through USB Type-C cable.
3.
Press the USB_BOOT button (S0203).
4.
Insert the DC power adapter and power on the module.
5.
Upgrade the firmware with QFlash. Please refer to Quectel_QFlash_User_Guide for details about the
use of QFlash.
5G_EVB_User_Guide
5G/LTE-A Module Series
5G EVB User Guide
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