KS Max: modify/unlock top speed!

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Lothean
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KS Max: modify/unlock top speed!

Postby Lothean Sat Sep 07, 2019 1:50 am

I am very happy to introduce you to the new method that will allow you to get the maximum speed out of your KS Max (30km/h), no matter the version you currently have (G30, G30D, SNSC2.0)...

THIS METHOD IS OUTDATED IF THE SCOOTER IS ON DRV126+
How to change SN after DRV126 update


Requirements:
  • Your KS Max (must be Bluetooth-enabled)
  • A Windows 10 PC with BLE
  • Ninebot-Flasher
  • An official or flashed ESx dashboard (can be extracted from any Ninebot ESx scooter)
  • Some tools
How-to:
  • Remove your Max dashboard and unplug it from your scooter. Make sure scooter is turned off.
  • Plug your ESx dashboard into your Max and turn on your scooter.
  • Start Ninebot-Flasher and connect to your scooter. If you're pushed back to the connecting screen, just select your scooter again and click Connect.
  • Hit Ctrl+Alt+A: some buttons should appear, we're only interested in the one named Write ESC Sn. If that doesn't work, please ask on Discord.
  • Get your current Max serial number and replace the 5 first characters with N4GSD (or check table below for any other max speed). Input that serial number in the text field and click Write ESC Sn.
  • Your new serial number should be displayed. If that's the case, you can reassemble your Max and enjoy your new top speed!

DO NOT CONNECT TO THE NINEBOT APP OR UPDATE FIRMWARE WHILE YOU HAVE THE ESx DASH CONNECTED TO YOUR MAX!


Max speed according to serial numbers:
  • N4GSD: 30km/h
  • N4GCD: 25km/h
  • N4GEA: 20km/h
Thanks to all the people that made that tutorial possible:
Majsi, dev of Ninebot-Flasher
SurgeSPB, clever Russian dev that found out that using an ESx dashboard bypasses Ninebot encryption ( :lol: )
ScooterHacking.org
And all of the people who provided resources and time to test ;)

Video tutorial and demonstration : https://youtu.be/-1QM71ioTBo
Sokret
Posts: 2
Joined: Sat Sep 07, 2019 6:59 am

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Sokret Sat Sep 07, 2019 7:03 am

Confirmed this is working. Now that we got 30KPH ride, what a 35KPH would feel? Oh human...
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UgloBuglo
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Location: Sweden

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby UgloBuglo Sat Sep 07, 2019 7:04 am

Awesome! :D
Kimboo
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Joined: Sat Sep 07, 2019 8:46 am

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Kimboo Sat Sep 07, 2019 8:49 am

Thanks a lot for your efforts, this is really cool! :)

As I will need to borrow the ESx dashboard from a friend, I want to ask if this will chance that in any way? Or are all changes only to the Max scooter? Thanks again!
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Lothean
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Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Lothean Sat Sep 07, 2019 5:26 pm

Thanks a lot for your efforts, this is really cool! :)

As I will need to borrow the ESx dashboard from a friend, I want to ask if this will chance that in any way? Or are all changes only to the Max scooter? Thanks again!
The BLE just passes the command to the ESC, so no change should be done to the dashboard if you follow the tutorial step-by-step.
Hooter78
Posts: 3
Joined: Fri Apr 12, 2019 10:06 pm

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Hooter78 Sun Sep 08, 2019 7:48 pm

Will the Other method that doesn't require an extraction be available anytime soon?
Sokret
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Joined: Sat Sep 07, 2019 6:59 am

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Sokret Tue Sep 10, 2019 3:49 am

I noticed nothing change to the ES. That can't be verified though
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Lothean
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Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Lothean Wed Sep 11, 2019 3:18 am

I noticed nothing change to the ES. That can't be verified though
Yes it can, by knowing how the Ninebot protocol works.
Packet have a source address and a destination address. The BLE doesn't retain any particular information apart from the BLE name.
In this case, we're only sending and receiving packets from/to the ESC, which is the Max one when connected, of course.
blAde
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Joined: Fri Sep 20, 2019 1:43 pm

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby blAde Fri Sep 20, 2019 1:49 pm

seems not to work on g30d
cant write the esc sn
connection works, lock / unlock and all the things, but if i try to change the sn i just get back the old / original sn
Dutchmax
Posts: 13
Joined: Sat Sep 21, 2019 5:16 pm

Re: [IN EXCLUSIVITY] KS Max: unlock top speed of 30km/h! (Ghetto method)

Postby Dutchmax Sat Sep 21, 2019 7:52 pm

Really? Hmm that's strange ( and I feel sorry for you, being stuck with 20km/h )

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