I have unfortunately upgraded to DRV 5.6.9 and it really sucks. I'm trying to downgrade it to 5.4.9 or another earlier version using IAP and Ninebot Flasher, however both these apps say 'bad file' when trying to select the drv549.bin.enc file. What's the recommended way of downgrading firmware on F...

The spring in my throttle resonates at 25km/h (only at that speed) so I wanted to lower the maximum speed a bit. Everything else works (locking the scooter, light switch, etc.) Any solutions? Thanks! We don't provide any firmware able to do that at the moment, however SHFW is currently being tested...