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  2. Firmware update release notes

My unu has the errors: B33 or Reconnecting Battery

Here you will find description of the following errors that appear on the display:


B33: Battery activation failed


Reconnecting Battery


For both errors, the main battery is not recognised by the unu. You can follow the descriptions on the display to fix them. Either wait a short time until the battery reconnects or turn the battery 180° or remove the battery for about 1 minute.


If the errors occur repeatedly, please contact your nearest partner garage. To eliminate both errors, a modification will be made on your unu. This involves installing an additional cable.


This work is covered by your warranty and we will pay the costs.


You can find your nearest partner workshop here.


If you have any further questions, please fill out our support form here and a member of our team will get back to you.