An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.
Having the same issue after swapping the Lyft brain and control board for stock ES4 ones and reassembling. Both batteries took a full charge. Brain comes on, shows 0mph and full battery icon, red tail lights flash every second or so, and the app says “connection failed” every time. Tried with 3 different brains, same issue. Any help would be appreciated!
For us with no spare 4 pin cable harness would you be able to trace the wires for continuity from the standard 4 pin with a multimeter just to see if the added bottom center 5th pin is the added connection and all others stay the same? that would really help a lot thank you!Kiki626 wrote: ↑Sun Jun 23, 2019 1:18 amYeah I had to reflash it with the StLinkv2 wired directly to the controller like this: To view images REGISTER or LOGIN for full access.
After you flash you'll want to upgrade the BMS to the latest verison 1.4.1 I believe through the ninebot app and then flash a custom firmware on there afterwards to get some more speed.
I'm using a motor power constant of 48000, alternative throttle algorithm, and 1.3.9 custom firmware base.
Please remember NOT to bomb down a hill and think that hitting the electric brake is ever a good idea, it fries your board almost instantly. I think the Lyft controllers *might* not be complete crap since they got pretty involved with their buillds... the jury is still out on that though. I'll let you know if i fry mine.
I get get 20-25mph on flats I haven't pushed it too far yet though. Either way it seems unlocked now after flashing the controller.
I threw that green 5 wire socket away because I didnt know how it was actually wired in the socket.. didn't want to blow up a dash miswiring it. Having that second 4 wire socket laying around was key but if you do end up trying it let us all know how it worked out.
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