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MLR003 Firmware Update Tool

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Created by Becky (Unlicensed), last modified on 2024-06-12

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Prerequisits

To get the latest Firmware Update Tool, please contact Bala (bala@micropelt.com)

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
A USB A to micro-USB cable should be connected
An RFID reader should be connected
- ACS ACR1252U preferred with appropriate drivers
- https://www.identible.de/acs-acr1252u-usb-nfc-reader.html
- https://www.acs.com.hk/en/driver/342/acr1252u-usb-nfc-reader-iii-nfc-forum-certified-reader/

Process

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.

Photos of opening a device

Problems and Possible Solutions

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

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