GNSS  Module  Series 
LC29H(AA,BA,CA,DA,EA)_EVB_User_Guide                                                               20  / 24 
 
 
 
6 Firmware  Upgrade 
 
Quectel LC29H module upgrades firmware via the UART interface by using QGPSFlashTool. For more 
information about QGPSFlashTool use, see document [3]. 
 
Download the QGPSFlashTool from our website Download Zone, or request it from  Quectel Technical 
Support. 
 
Before you start the firmware upgrade process: 
 
First: Connect the EVB to a PC with a Micro-USB cable. 
 
Second:   Flip the power switch (S201) to ON position to power on the EVB. 
 
Firmware upgrade steps: 
Step 1:  Start QGPSFlashTool. Click “Config”, then select “Options” and the interface of QGPSFlashTool 
will pop up as shown in the figure below. 
 
Figure 9: Firmware Upgrade – Step 1 
 
Step 2:  In the “Options” popup window, set the number of channels to be used. In the “Tool Options” 
drop-down box, select “LC29H”, and then click “OK” as shown in the figure below.