How to dump the BMS of your Ninebot Max / G30

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romano
Posts: 3
Joined: Thu Oct 03, 2019 10:59 am

How to dump the BMS of your Ninebot Max / G30

Postby romano Fri Dec 06, 2019 12:49 pm

Hi there,

Here is a quick tutorial in order to get a full dump of your Ninebot G30 - Max scooter BMS.
You need a ST-Link in SWIM mode (not SWD mode) because the chip is a STM8 family one.

Let's go :
  • Remove the battery case from the deck, screws are alongside the metal box
  • Remove the top cover of the waterproof case, there is a small black silicon seal. You can use thin flat screwdriver or a blade
  • Unscrew all the screws between accus and hidden by white silicon
  • Gently pull the accus packs from the waterproof case
  • Remove the grey plastic from the BMS
Here you can see one side of the BMS PCB:
back bms.jpg
back bms.jpg (1.69 MiB) Viewed 3395 times
And here is the wiring scheme :
pinout bms max2.jpg
pinout bms max2.jpg (1.95 MiB) Viewed 3395 times
You can use STVP https://www.st.com/en/development-tools/stvp-stm32.html

Click on read all tab (green arrow on the right) and click on Saves As for Program Memory and Data Memory:
Image

You should get 2 files that together form the full dump of your BMS.
Big things have small beginnings.
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Michelle
Posts: 15
Joined: Tue Oct 15, 2019 6:59 pm

Re: How to dump the BMS of your Ninebot Max / G30

Postby Michelle Sat Dec 14, 2019 7:46 am

Hey Romano, I'm trying to get my snsc2 to charge to 100%, right now it stops at 80%.
Do you have file u can send?
damoak
Posts: 2
Joined: Sat Dec 07, 2019 8:33 am

Re: How to dump the BMS of your Ninebot Max / G30

Postby damoak Sat Dec 14, 2019 5:00 pm

Is there anyway you can share your BMS bin ? I have LYFT BMS battery It shutdown with in 10 sec while riding the scooter .
Dabbin&scooting
Posts: 4
Joined: Tue Oct 15, 2019 5:34 pm

Re: How to dump the BMS of your Ninebot Max / G30

Postby Dabbin&scooting Sun Jan 12, 2020 5:34 pm

So download the link connected to the board from battery nothing happens .where do I get the bms file ? Has anyone actually had any success on the lyft scooter on flashing it after the bms .really havnt read any thing on Lyft max besides just this .hope to get some good news on gettn this scooter so once you flash bms do you continue on like the spin scooter flash dash board and control board ? Thanks ..
CapnBio
Posts: 7
Joined: Sat Feb 22, 2020 6:07 pm

Re: How to dump the BMS of your Ninebot Max / G30

Postby CapnBio Sat Feb 22, 2020 6:47 pm

Is there any way to do this without opening up the casing and taking everything apart?
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Unicycle Santa
Posts: 15
Joined: Sat Feb 22, 2020 9:42 pm

Re: How to dump the BMS of your Ninebot Max / G30

Postby Unicycle Santa Sun Mar 01, 2020 6:25 am

Is there any way to do this without opening up the casing and taking everything apart?
Nope!
cafepc
Posts: 2
Joined: Sat Mar 07, 2020 10:10 pm

Re: How to dump the BMS of your Ninebot Max / G30

Postby cafepc Mon Mar 09, 2020 5:57 am

Hello everyone,

I am new to this scooter hacking and appreciate any help.

I also have a Lyft Max scooter which I am trying to convert to personal use. Did anyone have any luck on flashing the BMS ? Do I need to dump the BMS then edit some value or just flash a original retail version of BMS ? Where would I find a copy of the retail version of BMS ?

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