Prerequisits
Get the latest Firmware Updater Tool from Micropelt by contacting us at the following mail
Please contact Bala (bala@micropelt.com) for the latest updater tool and further questions
STM32 Cube Programmer should be installed
Windows Driver Kit should be installed
An RFID reader should be connected
ACS ACR1252U preferred with appropriate drivers
https://www.acs.com.hk/en/driver/342/acr1252u-usb-nfc-reader-iii-nfc-forum-certified-reader/
A USB A to micro-USB cable should be connected
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