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The new EV3 software tells me to update my firmware on the NXT. When I go to the tools menu and select update firmware it tells me the NXT brick can not support this function.

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Same problem here. Looks like on the NXT you need to move the firmware file to a directory in the lego mindstorm software directory and click on update firmware in the NXT software. – user3013 Oct 4 '13 at 22:14
I don't really believe that ev3 firmware can be ran on NXT, but... Has anyone tried to copy ev3 firmware and import it with NXT software? – user6011 Jul 21 '15 at 20:12

EV3 software will not download firmware to the NXT brick. For that you need the NXT-G software and a downloaded firmware file from Lego. 1.31 is the latest version.

So if you're running EV3 on NXT, you shouldn't throw out the NXT-G software. Once in a while, it's still needed.

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In case you lose the CD, here is a link to an ISO image:… – gparyani Oct 12 '13 at 18:19

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