Yes, I am familiar with the Ninebot Flasher but apparently there is a new version out where you can also flash the BMS, not only the firmware itself. I will try this tonight.Did you download the Ninebot-Flasher? The link is in this thread... viewtopic.php?f=6&t=3
I downloaded the BMS files here (https://files.scooterhacking.org/esx/fw/bms/)
Using the Ninebot Flasher I start the scan after turning my scooter on, select my scooter in the list and then connect. Once you open a file (in this case the BMS file you download) you will see 2 buttons to flash the BMS (one says Flash eBMS which is the external).
Which BMS file did you download and use for your batteries? Are the files on that server all flashed already?
So tired of driving only 23-27km/h, it feels so slow