How To Update Brompton Electric Firmware

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As a result of Bromptons continuous quality assurance processes, they have identified a problem with the Firmware installed on some Brompton Electric bicycles. We’re going to tell you how to find out if your Brompton might be affected by this problem, and how to update Brompton electric Firmware.

Here’s the following steps we will mention on how to update Brompton electric Firmware:

  • Check if your bike is affected.
  • What to do if your bike is affected.
  • Compensation.
  • New Brompton IOS electric app and Bluetooth functionality.

The models that were affected were either manufactured or had firmware updates between May 2020 and February 2021.

If you suspect that your Brompton electric might be one of the models affected, please keep the following in mind:

  • Under certain circumstances if a system failure occurs, there’s a low possibility that the electric system may continue to supply power to the motor.
  • There’s a low possibility that forward momentum will be maintained while the rider is not actively pedaling.
  • The risk of an accident is very low.
  • Only one minor fault has been reported.
  • There’s been no injuries as of yet.

In the sudden event that a system failure occurs, here’s how to prevent an accident.

Apply the brakes to bring the Brompton bike to a stop. Then, switch off or remove the battery to prevent the motor from providing continued assistance.

Then bring your Brompton to a local Brompton electric retailer for that following.

Your local Brompton retailer will repair your bike by upgrading  the Firmware to version 1-2-10-2, free of charge. Just keep in mind that this update is only available until September 1, 2021.

To get started please do the following steps.

Check if your bike is affected

In order to determine if your bike is affected, Brompton will require you to answer the following questions.

Question 1: Did you purchase your Brompton Electric from May 1, 2020?

Yes? If you answered yes, please click here.

No? If you answered no them continue to read the next question.

Question 2: Have you visited an accredited Brompton Retailer for a service or Firmware update between May 1, 2020 and March 1, 2021?

Yes? If you answered yes, please click here.

No? If you answered no, and the answer to Question 1 is also no, then your bike is not affected.

What to do if your bike is affected

If the Serial Number Checker confirms your Brompton Electric is affected, you are required to have an upgraded version of the Firmware installed free of charge on your bike by following a few simple steps. This is available to you until September 1, 2021.

Contact your local Brompton Electric Retailer to receive your Firmware update. Contact your local Brompton Electric retailer to schedule an appointment, who can then perform the update free of charge. You can find your closest dealer on Brompton’s Find A Store Page.

Please not that you must select Brompton Electric from the dropdown menu to filter for the correct dealers. Non Brompton Electric Dealers are unable to perform the upgrade.


In order to show their appreciation for your understanding and support, and as a gesture of goodwill, Brompton will give customers a credit of $30 for each affected bike that they own.

To receive this voucher you must first have the Firmware updated on your Brompton Electric and then complete the form on the following webpage.

Please note that this voucher is only available for customers from the following countries: Uk and Northern Ireland, France, Germany, USA, Belgium, Spain, Netherlands, Portugal, Republic of Ireland, Denmark, and Sweden. Brompton is unable to provide credit to customers outside of these locations.

Brompton’s customer service team will contact you within 10 working days of submitting the form to provide you with your voucher.

New Brompton IOS Electric app and Bluetooth functionality

In addition to correcting this issue, Firmware Version 1-2-10-2 also includes Bluetooth Low Energy (BLE) functionality. BLE enables connectivity between Brompton Electric and the upcoming Brompton Electric IOS App which is currently in the final stages of testing and due for release in Spring 2021, with an Android version following in 2022.

Upon the launch of the Brompton Electric IOS App, all Brompton Electric customers who have upgraded to Firmware Version 1-2-10-2 will be able to begin using the app, upon it’s release, with no further additional cost or need for further Firmware upgrades.


We hope this handy little guide on how to update Brompton electric Firmware has been helpful.

As long time Brompton owners and fans, we can proudly say that Brompton is committed to manufacturing the highest quality, hand brazed folding bikes in the world. They always put the safety of their customers above all else.

They keep all their products under continuous review, and never let any folding bikes that don’t meet the highest quality standards leave the manufacturing floor.


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