comma three

Learn about comma three support, factory reset, and trade-in options.

comma three device

About comma three

Released in July 2021, comma three is the predecessor of comma 3X. It is deprecated for new openpilot releases: openpilot v0.10.0 is the last version compatible with the device. Read the comma three hardware notes.

With openpilot 0.10, comma three moved to a separate long-term support release branch called release-tici for bug fixes. Read the openpilot 0.10 announcement.

Maintaining your comma three

Broken screen

Replacement screens for the comma three are available in the shop. See the product page for details and repair terms.

Performing a factory reset

Reset the comma three by repeatedly tapping on the screen as soon as the device boots up. After that, the factory reset screen will come up.

If this does not work, a more complete factory reset can be performed at flash.comma.ai.

Learn how to flash your comma

Out-of-warranty repairs

We offer trade-ins for eligible devices. See upgrading to a comma four below for details.

Upgrading to a comma four

You can trade in your comma three for $250 credit toward a new comma four, regardless of its condition. The offer is for the original purchaser of the comma three when buying a new comma four. Select the trade-in option on the comma four product page and send your comma three back within 30 days of receiving the new device.

Read the trade-in instructions and terms.


Still have an issue?

We're here to help.