Bafang M500/M600 Tuning & The BESST Tool

[Dado]

Hello, does anybody know if is possible to change the 0x0774 byte in Firmware to any value (for example to 04) to decrease max. motor power ? Would it work, or FW has some checksum, or it bricks controller ?

Hello Peter.

Where did you get this byte position and are you sure this will change max motor current? It is not so easy. )
You can try, dont worry about CRC, you will get just error message that CRC does not match, but Besst anyway allow to flash your modified firmware bin file. Possible to calculate also new CRC. No worries about bricking, so far still worked when I then re-flashed with original firmware.

 

[YZDude]

Hi, have an issue with battery range after changing firmware.

I have M600 motor, 43V battery, C245 display that connects to Go+ app.

Just updated the firmware to: CRX10NC4818i132014.6-20191126

I charged the battery to full and connected it to bike, display read 60% and dropped to 20% in about 5 miles and cut back assist and so forth.

Could this be a problem because I uploaded 48V firmware to a bike with 43V battery?
If so, is this correctable in BESST? Thought I would ask before adjusting anything.