GNSS  Module  Series 
LC29H(AA,BA,CA,DA,EA)_EVB_User_Guide                                                               14  / 24 
 
 
 
4 Communication  via  QCOM  Tool 
 
This  chapter explains how to  use  the  QCOM tool to  communicate with  the module  via  the Micro-USB 
interface. 
 
Download the QCOM tool from our website Download Zone or request it from Quectel Technical Support. 
 
4.1. Communication via Micro-USB Interface 
 
Step 1:  Connect the EVB and the PC with a Micro-USB cable via the Micro-USB interface. 
 
Step 2:  Flip the power switch (S201) to ON position to power on the EVB. 
 
Step 3:  Run the provided driver installer to install the USB driver. 
 
Step 4:  View the USB port numbers in the Device Manager, as shown in the figure below. 
 
Figure 4: USB Ports 
 
Step 5:  Install the QCOM tool provided by Quectel. The COM Port Setting interface of QCOM is shown 
in the figure below (default baudrate: 115200 bps