Marrold's Blog: Flashing a CC2531 Zigbee Dongle with the zigbee2mqtt firmware using a Raspberry Pi

https://www.marrold.co.uk/2019/09/flashing-cc2531-zigbee-dongle-with.html

 you may need to change the link to the firmware, currently 

https://github.com/Koenkk/Z-Stack-firmware/raw/master/coordinator/Z-Stack_Home_1.2/bin/default/CC2531_DEFAULT_20201127.zip

i had also some issues getting stuck on verifying, trying this now 

https://github.com/jmichault/flash_cc2531/issues/10

FUNCIONA

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