mirkoser100 said:You can buy it here. If you are in Germany you will get it within 3 days.
https://hollandbikeshop.com/de-de/fahrradteile-elektrisches-rad/bafang-e-bike-ersatzteile/bafang-werkzeug/bafang-besst-uc-3-0-diagnose-tool-schwarz-674362/
Yes somebody posted a firmware but for a 43v M600 version...
Gesendet von iPhone mit Tapatalk
I enclose the firmware for M600 43V from August 2020 and the firmware 48V from November 2019.
I think the 43V is better than the 48V even in a 48V system.