Pre-Order - Shipping Mid to Late Feb 2026.
A small USB interface for re-flashing Nissan leaf BMS firmwares, including the 40, 50 and 64kwh CATL firmwares for chinese battery upgrades.
These are built to order - expect 4-5 days to assemble and test before we ship.
USA import duty and tariffs are included in the price where applicable.
Command line application HERE (Updated 30 Jan 2026)
To use, open a command prompt where the application is located and type BMS_HW_Flasher_v6 yourfirmware.bin
To extract firmware from an unlocked BMS, type BMS_HW_Flasher_v4 firmware.bin -r
BMS FIRMWARE FILES ARE NOT INCLUDED AND ARE NOT AVAILABLE FROM US. WITHOUT A BMS FIRMWARE FILE, THIS DEVICE WILL NOT BE USEFUL TO YOU.
Need a tool to extract firmware from a locked BMS? Click HERE
Need your BMS Reflashed? Or a ready to use BMS? Click HERE