RTK-Express: Firmware update from 1.3

GPS/GNSS Development Boards
1

I would like to renew the firmware of my RTK-Express from 1.3 to 1.8.

I follow a tutorial that wants to update from the firmware 1.4. There is a sub-item “Firmware upgrade”

To do this, I connect the ESP32 port on my RTK-Express to my laptop. When I open the configuration menu on my TeraTerm, the sub-item “Firmware upgrade” is missing.

How can I update without the sup-item?

RTK-Express_no-firmware-update.PNG

2

There is the possibility to flash the firmware via the tool esptool.py.

In the tutorial (https://learn.sparkfun.com/tutorials/sp … -guide/all) is a point: Updating Firmware from CLI. With this you can work very well.

The code that is copied into the CMD window has a baud rate that does not work for me. I have changed to 115200