While your Onewheel is connected to the mobile app via Bluetooth, tap the “hamburger” icon (three lines) on the top-right corner of your screen. Next, tap “Board Settings” at the bottom of the drop menu and look for “Hardware” near the bottom.
Onewheel (AKA, Future Motion) has made efforts to prevent access and modifications to the inner-workings of the board on newer models through updated firmware. You have nothing to worry about if you own an original (”V1”) or Plus model Onewheel, as these models do not receive firmware updates like newer models (XR and Pint) do.
XR models start at hardware version 4206, then continued to 4208 and 4209. These older models allow access to battery cell information with third party apps, which allows for battery modification and interchangeable parts for self repair. These versions are desirable to riders who wish to modify their boards, such as replacing the battery pack or adding external battery components.
XR Hardware 4210 is where it gets a bit tricky:
You cannot access cell information.
Battery modifications can be done, but can result in an “Error 23” when the Onewheel app detects a battery larger than stock.
The Controller (Onewheel computer stored in the front half) and the Battery Management System (battery computer stored in the rear) are interconnected together through the software. This makes the board difficult or impossible to self repair.
4211 and 4212 have all of the above restrictions, but will absolutely not work with any battery modification or range extenders.
Many Onewheel owners have no intention of self diagnosing, modifying or repairing their Onewheel. The Onewheel is a very reliable product and any hardware version can be repaired by Future Motion. The newer 4212 hardware even has some slightly upgraded internal components.
If you want the freedom to self-repair and modify your Onewheel, you will want a older board with 4209 hardware or later.