Dear Quectel Support Team, I am currently working with a pair of LC29HEA modules to set up a Moving Base and Rover configuration for a dual-antenna GPS compass (attitude/heading) system. The modules are connected via USB (Port 3) to a host controller. I am using the standard baud rate of 460800 bp…

Hi @B_J I have sent the latest FW version to your email including link to download QGNSS tool. Please do let me know if you have received the FW package. Best regard.

Thank you very much for the quick response, will test as soon as i have time.

Hey Mohamad, i did receive everthing you send but have a new problem. For the firmware update i need to press the reset button which doesnt exist on my gnss board. What is the exact procedureto do a firmware update for this module? [Screenshot_20260520_064704_Amazon Shopping] Thanks in advance f…

Here: Firmware Request: LC29HEA Adjustable Update Rate for Ardupilot Utilization - #6 by bamarcant and for moving_baseline here need to pair baudrate (the same) on uart 1 and uart2 [image] LC29HEA Moving Base: Never reaches RTK Fixed — incorrect baseline and heading with 2…

Thank you very much, flashing the new firmware worden like a charme. Will test the moving base tomorrow.

Hi @B_J in your case, you can use a jumper then connect with RST and GND pin as show as below picture: [image] Take note that you will only need to connect these 2 pins for at least 100ms. Then you will need to release or remove the jumper. The firmware update should be able to continue as usual…

@mohamad.firdaus …does not work due to the jumpers position. To enable the ttl pins must switch the position and flash with a ttl to usb connector , because the usb is disabled.

Hi @bamarcant and @mohamad.firdaus , I’ll have the same motherboard soon. How do I reset the motherboard to update it if I’m connected via USB? I saw a comment from @bamarcant but I can’t find it anymore. He mentioned briefly connecting pin 8 to ground. I’m not sure which pin is pin 8 or if it’s safe…

Hola Angel, esto: [immagine] [image] Firmware Request: LC29HEA Adjustable Update Rate for Ardupilot Utilization Upgrade/Debug To operate the reset command (for the fw upgrade) on Mozihao boards, you need to ground pin_8 manually only for few seconds until qg…

Hi Marco ( @bamarcant ) Thank you very much for the clarifications regarding the update. Now I have a question. If I connect to the PC with a TTL-USB adapter, will the RST pin and ground connection work? Or is this RST pin not connected to the LC29h? I’m also having trouble connecting a Bluetooth…

2 LC29HEA moving base rover

IoT Modules GNSS Module

bamarcant August 15, 2026, 4:05am 10

Hola Angel, esto:

oppure

comunque, che versione ti ha mandato l’ingegnere , se è più nuova di LC29HEANR11A04S_RSA
avvisami, grazie.