Firmware is the software that is inside the EV3 Brick. Without its firmware, the EV3 Brick will not work.

Occasionally, the LEGO Group may release new versions of the firmware that add enhanced functions or fix software bugs. You can have the latest technology and improve your EV3 Brick’s performance and reliability by updating your EV3 Brick’s firmware to the most recent version.

Updating the EV3 Firmware

To update the firmware, you need a USB connection from your computer to your EV3 Brick. Your computer must also be connected to the Internet.

1.	Turn your EV3 Brick on and connect it to your computer. Firmware updates can only be done with a USB connection.
2.	Select Firmware Update in the Tools menu. The Firmware Update dialogue box opens, as shown here.
3.	Click Check (next to Online updates) to see whether new firmware updates are available. If available, download them to your computer.
4.	Select the most recent firmware version from the Available firmware files. If the desired firmware version is not listed, press Browse to locate it.
5.	Click Download to download the Firmware to your EV3. The progress bars at the bottom of the Firmware Update dialogue box will show you how the Firmware Update is proceeding. Once complete, your EV3 Brick will reset itself.

Re-installing the original firmware

If your EV3 Brick stops working, it may help to re-install the firmware that shipped with your product.

Tips and Tricks

Check your EV3 Brick batteries before reinstalling firmware. Problems may simply be due to depleted batteries.

You will need to reset your EV3 Brick before proceeding with re-installation. See "Troubleshooting" in the printed User Guide for help on resetting your EV3 Brick.

When you have finished resetting your EV3 Brick, follow the instructions above to re-install the firmware that shipped with your product.

Firmware Update