How to Unbind/Fix “Vehicle Already Bound” Ninebot ESX

October 12th, 2020

When buying a Ninebot ESX(ES1, ES2, ES3, or ES4) used, sometimes the previous owner forgets to unbind the scooter from their account.

If you are using a Ninebot Max/G30/SNSC 2.0, use this tutorial. Functionally they are the same but the serial numbers are different.

A scooter bound to a different account prevents the new owner from making changes using the Ninebot App.

Settings, units, and more are not able to be changed until the vehicle can be bound.

The account bind is based on the serial number of the ESC.

To fix it, you must simply change the serial number.

Ninebot IAP and Ninebot Flasher are both able to do this.

Open IAP on a Windows Computer with BLE, and find your device by pressing “scan now”.

Press "Scan now" to find your device.

Press “Scan now” to find your device.

If you are on BLE > 1.0.7 (i.e. 1.0.9) you will be prompted to “Press the power button to pair”.

The device will not pair until you press the button you use to power on the scooter/change mode/enable the headlight. Short press it and it should connect.

The prompt for encrypted BLE.

The prompt for encrypted BLE.

From here, open the tools menu

Open the "Tools" menu under "Utilities"

Open the “Tools” menu under “Utilities”

Press “Read SN”, and make note of your current SN.

Press “Read” next to “Change SN” and make note of the output.

Press “Change SN”, and change the last four digits, or change the whole number.

Changing the last 4 digits is usually all that’s needed, but sometimes you will need to change some or all of the four digits before the “C” part of the serial number.

If the app still says “Vehicle bound by xxxxxx”, you may need to change it again.



14 thoughts on "How to Unbind/Fix “Vehicle Already Bound” Ninebot ESX"

  1. Senne says:

    Ive tried to use this method to unbind it from the previous user. But when i try to read the serial number it gives an error ‘you must be connected to a target’ even though in the upper part of the window it says that i am connected

    1. joeybab3 says:

      Which app are you using to do this?
      EDIT: Forgot this tutorial only covers IAP. Make sure you are using a Bluetooth dongle that supports BLE.
      If you are sure and it’s still not working you may want to look into some of the other methods using an android phone.

  2. Piero says:

    Hi I have this problem with Ninebot One S2 , I tried to use this tutorial but Ninebot IAP do not scan any BT device , do you have any suggestion ?

    1. joeybab3 says:

      This tutorial is for a Ninebot ESX, I am not sure how to do it on the other Ninebot vehicles as I do not own one sorry.

  3. Tom says:

    I had the same thing, you have to push the button on the scooter for it to actually connect.

    1. joeybab3 says:

      I’ve updated the post as I forgot to include a part about how that may be necessary, thanks!

  4. noa says:

    i keep getting the “you must be connected to a target” is this via bluetooth or is there an actual cable?

    1. joeybab3 says:

      It’s rare that ESX/SNSC scooters will have the cable as this was a rental-specific feature only for a few companies, so this is meant for Bluetooth.

      What type of scooter are you attempting to connect to?

  5. Jayk says:

    I have done this for an es4 and completely changed all the numbers but it still says bound. Help?

    1. joeybab3 says:

      Is it a foldable model?

  6. Jack M says:

    I have a segway x260 and i downloaded the software to try to unbind from the original owner and when i open the software and scan i cannot find my ebike on the search. Please help!

    1. joeybab3 says:

      I’m not sure that IAP supports the X260, and unfortunately, I don’t own one so I can’t advise.
      Sorry about that.

  7. Ken says:

    Do you have these for Mac as well? No PC here… Also, will these work for the NineBot S Plus and the NineBot MiniPro Transporters?

    1. joeybab3 says:

      Hi, I responded to your other comment on my other post but just in case you missed it:

      As of right now, there is not software for mac to be able to do this. As far as I know, only the scooters are supported.

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