ScooterHacking.org

Good morning all,

I finally open this topic because it's been 2 weeks that I try to flash a firmware on an ESC of Ninebot ES4 ...
I have never seen this card before, the board is blue but also the cable of the dashboard is not present.
I recovered the cable of the old GPS to mount on the 4 pins normally provided for this purpose.
I cut a cable from the connector because it's a 5-pin base,
after doing this, I turn on the scooter, the dashboard "beep" but does not display the remaining battery.
I can connect in Bluetooth with Ninebot Flasher but I can't get SN info / Battery Version etc ... (Tested with windows and Android).
So I restarted the scooter and welded 4 cable to perform a flash with the STLink.
Flash OK, no error but nothing changes.
I tested to change the SN several times but it's the same result with any serials! (.bin used: "esc139_fulldump.bin" from this topic : viewtopic.php?f=6&t=14)
When I ride the scooter, it flickers quickly as soon as I move it.
The connections between the dashboard and the ESC are good (tested with multimeter) and I have tested the dashboard on another scooter and it works very well.

Does anyone have an idea, did anyone ever see this model card?

Sorry for my little english!
Thanks for your replies

Somes pictures to illustrate:

Hey!

Try following that tutorial, it explains very well what to do with these boards: https://www.youtube.com/watch?v=hf_KrEb76ZY

Hi friend! Where are you from? i Think the connector that you think is the dashboard.. is the gps connector! I think that is a rental esc.
I m new on this. cant help you a lot. sorry.

And my english is verry poor!!!!

Hi guys,

Thanks a lot for your fast replys!!

@Mazzamotorsport I live close to Paris. I know it's the gps connector but i have rewired this one this use it with my dash
@Lothean Big big thanks! The video have 2 days i'm lucky! I will test that tomorrow and i will give you some news after.

See you tomorrow!

Hi guys,

I have some news!

I followed the instructions of the video, now I have a feedback on the battery, the SN etc ... so it communicates
The only problem now is that I can't change the SN.
In ninebot Flasher, I connect to my dash, I do Ctrl + A, I enter N2GTA1601C0001 and I click on "Write ESC Sn" but the SN does not change ...

New problem for a new solution?

Hi guys,

I have some news!

I followed the instructions of the video, now I have a feedback on the battery, the SN etc ... so it communicates
The only problem now is that I can't change the SN.
In ninebot Flasher, I connect to my dash, I do Ctrl + A, I enter N2GTA1601C0001 and I click on "Write ESC Sn" but the SN does not change ...

New problem for a new solution?

Your dashboard must be a clone, you will need to flash original firmware with STLink

Yes it’s a clone, do you know how to preceed to flash an OFW with the stlink?
If it’s to difficult with a clone, i can have an official dash.

Yes it’s a clone, do you know how to preceed to flash an OFW with the stlink?
If it’s to difficult with a clone, i can have an official dash.

viewtopic.php?f=6&t=15

Thanks a lot,

I did not understand that you were talking about the dashboard, I thought you were talking about flashing a DRV on the motherboard with the STLink
I have flashed the dash and now all is done!
Thanks for your big help @Lothean

Have a good day all!