MLR003 Firmware Update Tool

PDF DOWNLOAD USER GUIDE:

STM32 Cube Programmer should be installed

https://www.st.com/en/development-tools/stm32cubeprog.html

Windows Driver Kit should be installed

https://docs.microsoft.com/en-us/windows-hardware/drivers/download-the-wdk

An USB A to micro-USB cable should be connected

A RFID reader should be connected

ACS ACR1252U preferred with appropriate drivers

ACS ACR1252U-USB NFC Reader - Identible

https://www.acs.com.hk/en/driver/342/acr1252u-usb-nfc-reader-iii-nfc-forum-certified-reader/

Opening the device

Notes

The Firmware Updater Tool retains the original Application Key for each device. Thus, if the device will continue communicating with the same Gateway, then there is no need to update the device credentials within the Gateway.

Problems and Possible Solutions

If flashing fails, try plugging the USB into a powered USB hub

If flashing fails, try a different USB cable

Process

SEE Flowchart below