In order to update the fimrware you will need a
USB to Serial Converter Windows PC Board name PR55-88 Note : if the file name has any special char please remove it
Make sure the PC has usb-serial driver https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads
To update the firmware, you will need a
USB to Serial Converter(PR55-68 or any USB to serial) Windows PC Board name PR55-81 Note: if the file name has any special char, please remove it
How to put in program mode
Press and hold cfg button
Press and release the RST button
Release RST button
Once the firmware update is finished, device will reboot
COmmand to start fimrware update -- python ncd_py_bootloader_v2.py COM4 ./Upgrade.ncd 240